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-rw-r--r--html/022arithmetic.cc.html168
1 files changed, 85 insertions, 83 deletions
diff --git a/html/022arithmetic.cc.html b/html/022arithmetic.cc.html
index 0b49bc79..7c92b039 100644
--- a/html/022arithmetic.cc.html
+++ b/html/022arithmetic.cc.html
@@ -11,21 +11,22 @@
 <style type="text/css">
 <!--
 pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; }
-body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
-a { color:#eeeeee; text-decoration: none; }
-a:hover { text-decoration: underline; }
-* { font-size: 12pt; font-size: 1em; }
-.traceContains { color: #008000; }
-.LineNr { color: #444444; }
-.Constant { color: #00a0a0; }
+body { font-size:12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
+.subxS2Comment a { color:inherit; }
+.subxS1Comment a { color:inherit; }
+.subxComment a { color:inherit; }
+.subxH2Comment a { color:inherit; }
+.subxH1Comment a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
+.LineNr { color:#444444; }
+.Constant { color:#00a0a0; }
 .muRecipe { color: #ff8700; }
-.Delimiter { color: #800080; }
-.Special { color: #c00000; }
-.Identifier { color: #c0a020; }
+.Delimiter { color:#800080; }
+.Special { color:#c00000; }
+.Identifier { color:#c0a020; }
 .Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; }
-.Comment { color: #9090ff; }
-.Comment a { color:#0000ee; text-decoration:underline; }
-.cSpecial { color: #008000; }
+.Comment { color: #8080ff; }
+.traceContains { color: #008000; }
 -->
 </style>
 
@@ -59,28 +60,29 @@ if ('onhashchange' in window) {
 </script>
 </head>
 <body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/master/022arithmetic.cc'>https://github.com/akkartik/mu/blob/master/022arithmetic.cc</a>
 <pre id='vimCodeElement'>
 <span id="L1" class="LineNr">  1 </span><span class="Comment">//: Arithmetic primitives</span>
 <span id="L2" class="LineNr">  2 </span>
 <span id="L3" class="LineNr">  3 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L4" class="LineNr">  4 </span>ADD<span class="Delimiter">,</span>
 <span id="L5" class="LineNr">  5 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L6" class="LineNr">  6 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;add&quot;</span><span class="Delimiter">,</span> ADD<span class="Delimiter">);</span>
+<span id="L6" class="LineNr">  6 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;add&quot;</span><span class="Delimiter">,</span> ADD<span class="Delimiter">);</span>
 <span id="L7" class="LineNr">  7 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L8" class="LineNr">  8 </span><span class="Normal">case</span> ADD: <span class="Delimiter">{</span>
 <span id="L9" class="LineNr">  9 </span>  <span class="Comment">// primary goal of these checks is to forbid address arithmetic</span>
 <span id="L10" class="LineNr"> 10 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L11" class="LineNr"> 11 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L12" class="LineNr"> 12 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'add' requires number ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L12" class="LineNr"> 12 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'add' requires number ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L13" class="LineNr"> 13 </span>      <span class="Identifier">goto</span> finish_checking_instruction<span class="Delimiter">;</span>
 <span id="L14" class="LineNr"> 14 </span>    <span class="Delimiter">}</span>
 <span id="L15" class="LineNr"> 15 </span>  <span class="Delimiter">}</span>
 <span id="L16" class="LineNr"> 16 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L17" class="LineNr"> 17 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'add' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L17" class="LineNr"> 17 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'add' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L18" class="LineNr"> 18 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L19" class="LineNr"> 19 </span>  <span class="Delimiter">}</span>
 <span id="L20" class="LineNr"> 20 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L21" class="LineNr"> 21 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'add' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L21" class="LineNr"> 21 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'add' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L22" class="LineNr"> 22 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L23" class="LineNr"> 23 </span>  <span class="Delimiter">}</span>
 <span id="L24" class="LineNr"> 24 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -133,25 +135,25 @@ if ('onhashchange' in window) {
 <span id="L71" class="LineNr"> 71 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L72" class="LineNr"> 72 </span>SUBTRACT<span class="Delimiter">,</span>
 <span id="L73" class="LineNr"> 73 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L74" class="LineNr"> 74 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;subtract&quot;</span><span class="Delimiter">,</span> SUBTRACT<span class="Delimiter">);</span>
+<span id="L74" class="LineNr"> 74 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;subtract&quot;</span><span class="Delimiter">,</span> SUBTRACT<span class="Delimiter">);</span>
 <span id="L75" class="LineNr"> 75 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L76" class="LineNr"> 76 </span><span class="Normal">case</span> SUBTRACT: <span class="Delimiter">{</span>
 <span id="L77" class="LineNr"> 77 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-<span id="L78" class="LineNr"> 78 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'subtract' has no ingredients</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L78" class="LineNr"> 78 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'subtract' has no ingredients\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L79" class="LineNr"> 79 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L80" class="LineNr"> 80 </span>  <span class="Delimiter">}</span>
 <span id="L81" class="LineNr"> 81 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L82" class="LineNr"> 82 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L83" class="LineNr"> 83 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'subtract' requires number ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L83" class="LineNr"> 83 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'subtract' requires number ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L84" class="LineNr"> 84 </span>      <span class="Identifier">goto</span> finish_checking_instruction<span class="Delimiter">;</span>
 <span id="L85" class="LineNr"> 85 </span>    <span class="Delimiter">}</span>
 <span id="L86" class="LineNr"> 86 </span>  <span class="Delimiter">}</span>
 <span id="L87" class="LineNr"> 87 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L88" class="LineNr"> 88 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'subtract' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L88" class="LineNr"> 88 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'subtract' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L89" class="LineNr"> 89 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L90" class="LineNr"> 90 </span>  <span class="Delimiter">}</span>
 <span id="L91" class="LineNr"> 91 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L92" class="LineNr"> 92 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'subtract' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L92" class="LineNr"> 92 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'subtract' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L93" class="LineNr"> 93 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L94" class="LineNr"> 94 </span>  <span class="Delimiter">}</span>
 <span id="L95" class="LineNr"> 95 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -189,21 +191,21 @@ if ('onhashchange' in window) {
 <span id="L127" class="LineNr">127 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L128" class="LineNr">128 </span>MULTIPLY<span class="Delimiter">,</span>
 <span id="L129" class="LineNr">129 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L130" class="LineNr">130 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;multiply&quot;</span><span class="Delimiter">,</span> MULTIPLY<span class="Delimiter">);</span>
+<span id="L130" class="LineNr">130 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;multiply&quot;</span><span class="Delimiter">,</span> MULTIPLY<span class="Delimiter">);</span>
 <span id="L131" class="LineNr">131 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L132" class="LineNr">132 </span><span class="Normal">case</span> MULTIPLY: <span class="Delimiter">{</span>
 <span id="L133" class="LineNr">133 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L134" class="LineNr">134 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L135" class="LineNr">135 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'multiply' requires number ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L135" class="LineNr">135 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'multiply' requires number ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L136" class="LineNr">136 </span>      <span class="Identifier">goto</span> finish_checking_instruction<span class="Delimiter">;</span>
 <span id="L137" class="LineNr">137 </span>    <span class="Delimiter">}</span>
 <span id="L138" class="LineNr">138 </span>  <span class="Delimiter">}</span>
 <span id="L139" class="LineNr">139 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L140" class="LineNr">140 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'multiply' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L140" class="LineNr">140 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'multiply' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L141" class="LineNr">141 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L142" class="LineNr">142 </span>  <span class="Delimiter">}</span>
 <span id="L143" class="LineNr">143 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L144" class="LineNr">144 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'multiply' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L144" class="LineNr">144 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'multiply' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L145" class="LineNr">145 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L146" class="LineNr">146 </span>  <span class="Delimiter">}</span>
 <span id="L147" class="LineNr">147 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -242,25 +244,25 @@ if ('onhashchange' in window) {
 <span id="L180" class="LineNr">180 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L181" class="LineNr">181 </span>DIVIDE<span class="Delimiter">,</span>
 <span id="L182" class="LineNr">182 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L183" class="LineNr">183 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;divide&quot;</span><span class="Delimiter">,</span> DIVIDE<span class="Delimiter">);</span>
+<span id="L183" class="LineNr">183 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;divide&quot;</span><span class="Delimiter">,</span> DIVIDE<span class="Delimiter">);</span>
 <span id="L184" class="LineNr">184 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L185" class="LineNr">185 </span><span class="Normal">case</span> DIVIDE: <span class="Delimiter">{</span>
 <span id="L186" class="LineNr">186 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-<span id="L187" class="LineNr">187 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide' has no ingredients</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L187" class="LineNr">187 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide' has no ingredients\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L188" class="LineNr">188 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L189" class="LineNr">189 </span>  <span class="Delimiter">}</span>
 <span id="L190" class="LineNr">190 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L191" class="LineNr">191 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L192" class="LineNr">192 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide' requires number ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L192" class="LineNr">192 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide' requires number ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L193" class="LineNr">193 </span>      <span class="Identifier">goto</span> finish_checking_instruction<span class="Delimiter">;</span>
 <span id="L194" class="LineNr">194 </span>    <span class="Delimiter">}</span>
 <span id="L195" class="LineNr">195 </span>  <span class="Delimiter">}</span>
 <span id="L196" class="LineNr">196 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L197" class="LineNr">197 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L197" class="LineNr">197 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide' yields exactly one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L198" class="LineNr">198 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L199" class="LineNr">199 </span>  <span class="Delimiter">}</span>
 <span id="L200" class="LineNr">200 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L201" class="LineNr">201 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L201" class="LineNr">201 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L202" class="LineNr">202 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L203" class="LineNr">203 </span>  <span class="Delimiter">}</span>
 <span id="L204" class="LineNr">204 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -300,24 +302,24 @@ if ('onhashchange' in window) {
 <span id="L238" class="LineNr">238 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L239" class="LineNr">239 </span>DIVIDE_WITH_REMAINDER<span class="Delimiter">,</span>
 <span id="L240" class="LineNr">240 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L241" class="LineNr">241 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;divide-with-remainder&quot;</span><span class="Delimiter">,</span> DIVIDE_WITH_REMAINDER<span class="Delimiter">);</span>
+<span id="L241" class="LineNr">241 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;divide-with-remainder&quot;</span><span class="Delimiter">,</span> DIVIDE_WITH_REMAINDER<span class="Delimiter">);</span>
 <span id="L242" class="LineNr">242 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L243" class="LineNr">243 </span><span class="Normal">case</span> DIVIDE_WITH_REMAINDER: <span class="Delimiter">{</span>
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-<span id="L245" class="LineNr">245 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide-with-remainder' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L245" class="LineNr">245 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide-with-remainder' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L246" class="LineNr">246 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L247" class="LineNr">247 </span>  <span class="Delimiter">}</span>
 <span id="L248" class="LineNr">248 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> || !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L249" class="LineNr">249 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide-with-remainder' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L249" class="LineNr">249 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide-with-remainder' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L250" class="LineNr">250 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L251" class="LineNr">251 </span>  <span class="Delimiter">}</span>
 <span id="L252" class="LineNr">252 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L253" class="LineNr">253 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide-with-remainder' yields two products in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L253" class="LineNr">253 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide-with-remainder' yields two products in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L254" class="LineNr">254 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L255" class="LineNr">255 </span>  <span class="Delimiter">}</span>
 <span id="L256" class="LineNr">256 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L257" class="LineNr">257 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>!is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L258" class="LineNr">258 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide-with-remainder' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L258" class="LineNr">258 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'divide-with-remainder' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L259" class="LineNr">259 </span>      <span class="Identifier">goto</span> finish_checking_instruction<span class="Delimiter">;</span>
 <span id="L260" class="LineNr">260 </span>    <span class="Delimiter">}</span>
 <span id="L261" class="LineNr">261 </span>  <span class="Delimiter">}</span>
@@ -330,7 +332,7 @@ if ('onhashchange' in window) {
 <span id="L268" class="LineNr">268 </span>  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> a = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
 <span id="L269" class="LineNr">269 </span>  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> b = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
 <span id="L270" class="LineNr">270 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>b == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L271" class="LineNr">271 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;divide by zero in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L271" class="LineNr">271 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;divide by zero in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L272" class="LineNr">272 </span>    products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span>
 <span id="L273" class="LineNr">273 </span>    products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
 <span id="L274" class="LineNr">274 </span>    products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
@@ -384,23 +386,23 @@ if ('onhashchange' in window) {
 <span id="L322" class="LineNr">322 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L323" class="LineNr">323 </span>SHIFT_LEFT<span class="Delimiter">,</span>
 <span id="L324" class="LineNr">324 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L325" class="LineNr">325 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;shift-left&quot;</span><span class="Delimiter">,</span> SHIFT_LEFT<span class="Delimiter">);</span>
+<span id="L325" class="LineNr">325 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;shift-left&quot;</span><span class="Delimiter">,</span> SHIFT_LEFT<span class="Delimiter">);</span>
 <span id="L326" class="LineNr">326 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L327" class="LineNr">327 </span><span class="Normal">case</span> SHIFT_LEFT: <span class="Delimiter">{</span>
 <span id="L328" class="LineNr">328 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L329" class="LineNr">329 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-left' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L329" class="LineNr">329 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-left' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L330" class="LineNr">330 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L331" class="LineNr">331 </span>  <span class="Delimiter">}</span>
 <span id="L332" class="LineNr">332 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> || !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L333" class="LineNr">333 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-left' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L333" class="LineNr">333 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-left' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L334" class="LineNr">334 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L335" class="LineNr">335 </span>  <span class="Delimiter">}</span>
 <span id="L336" class="LineNr">336 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L337" class="LineNr">337 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-left' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L337" class="LineNr">337 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-left' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L338" class="LineNr">338 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L339" class="LineNr">339 </span>  <span class="Delimiter">}</span>
 <span id="L340" class="LineNr">340 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L341" class="LineNr">341 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-left' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L341" class="LineNr">341 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-left' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L342" class="LineNr">342 </span>    <span class="Identifier">goto</span> finish_checking_instruction<span class="Delimiter">;</span>
 <span id="L343" class="LineNr">343 </span>  <span class="Delimiter">}</span>
 <span id="L344" class="LineNr">344 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -412,7 +414,7 @@ if ('onhashchange' in window) {
 <span id="L350" class="LineNr">350 </span>  <span class="Normal">int</span> b = <span class="Normal">static_cast</span>&lt;<span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
 <span id="L351" class="LineNr">351 </span>  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
 <span id="L352" class="LineNr">352 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>b &lt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L353" class="LineNr">353 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;second ingredient can't be negative in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span><a href='026call.cc.html#L89'>current_instruction</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L353" class="LineNr">353 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;second ingredient can't be negative in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span><a href='026call.cc.html#L89'>current_instruction</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L354" class="LineNr">354 </span>    products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
 <span id="L355" class="LineNr">355 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L356" class="LineNr">356 </span>  <span class="Delimiter">}</span>
@@ -455,23 +457,23 @@ if ('onhashchange' in window) {
 <span id="L393" class="LineNr">393 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L394" class="LineNr">394 </span>SHIFT_RIGHT<span class="Delimiter">,</span>
 <span id="L395" class="LineNr">395 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L396" class="LineNr">396 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;shift-right&quot;</span><span class="Delimiter">,</span> SHIFT_RIGHT<span class="Delimiter">);</span>
+<span id="L396" class="LineNr">396 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;shift-right&quot;</span><span class="Delimiter">,</span> SHIFT_RIGHT<span class="Delimiter">);</span>
 <span id="L397" class="LineNr">397 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L398" class="LineNr">398 </span><span class="Normal">case</span> SHIFT_RIGHT: <span class="Delimiter">{</span>
 <span id="L399" class="LineNr">399 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L400" class="LineNr">400 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-right' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L400" class="LineNr">400 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-right' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L401" class="LineNr">401 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L402" class="LineNr">402 </span>  <span class="Delimiter">}</span>
 <span id="L403" class="LineNr">403 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> || !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L404" class="LineNr">404 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-right' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L404" class="LineNr">404 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-right' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L405" class="LineNr">405 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L406" class="LineNr">406 </span>  <span class="Delimiter">}</span>
 <span id="L407" class="LineNr">407 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L408" class="LineNr">408 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-right' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L408" class="LineNr">408 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-right' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L409" class="LineNr">409 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L410" class="LineNr">410 </span>  <span class="Delimiter">}</span>
 <span id="L411" class="LineNr">411 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L412" class="LineNr">412 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-right' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L412" class="LineNr">412 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'shift-right' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L413" class="LineNr">413 </span>    <span class="Identifier">goto</span> finish_checking_instruction<span class="Delimiter">;</span>
 <span id="L414" class="LineNr">414 </span>  <span class="Delimiter">}</span>
 <span id="L415" class="LineNr">415 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -483,7 +485,7 @@ if ('onhashchange' in window) {
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 <span id="L422" class="LineNr">422 </span>  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
 <span id="L423" class="LineNr">423 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>b &lt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L424" class="LineNr">424 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;second ingredient can't be negative in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span><a href='026call.cc.html#L89'>current_instruction</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L424" class="LineNr">424 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;second ingredient can't be negative in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span><a href='026call.cc.html#L89'>current_instruction</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
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 <span id="L426" class="LineNr">426 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L427" class="LineNr">427 </span>  <span class="Delimiter">}</span>
@@ -526,23 +528,23 @@ if ('onhashchange' in window) {
 <span id="L464" class="LineNr">464 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L465" class="LineNr">465 </span>AND_BITS<span class="Delimiter">,</span>
 <span id="L466" class="LineNr">466 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L467" class="LineNr">467 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;and-bits&quot;</span><span class="Delimiter">,</span> AND_BITS<span class="Delimiter">);</span>
+<span id="L467" class="LineNr">467 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;and-bits&quot;</span><span class="Delimiter">,</span> AND_BITS<span class="Delimiter">);</span>
 <span id="L468" class="LineNr">468 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L469" class="LineNr">469 </span><span class="Normal">case</span> AND_BITS: <span class="Delimiter">{</span>
 <span id="L470" class="LineNr">470 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L471" class="LineNr">471 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'and-bits' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L471" class="LineNr">471 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'and-bits' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L472" class="LineNr">472 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L473" class="LineNr">473 </span>  <span class="Delimiter">}</span>
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-<span id="L475" class="LineNr">475 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'and-bits' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L475" class="LineNr">475 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'and-bits' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L476" class="LineNr">476 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L477" class="LineNr">477 </span>  <span class="Delimiter">}</span>
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-<span id="L479" class="LineNr">479 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'and-bits' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L479" class="LineNr">479 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'and-bits' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L480" class="LineNr">480 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L481" class="LineNr">481 </span>  <span class="Delimiter">}</span>
 <span id="L482" class="LineNr">482 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L483" class="LineNr">483 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'and-bits' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L483" class="LineNr">483 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'and-bits' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L484" class="LineNr">484 </span>    <span class="Identifier">goto</span> finish_checking_instruction<span class="Delimiter">;</span>
 <span id="L485" class="LineNr">485 </span>  <span class="Delimiter">}</span>
 <span id="L486" class="LineNr">486 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -584,23 +586,23 @@ if ('onhashchange' in window) {
 <span id="L522" class="LineNr">522 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L523" class="LineNr">523 </span>OR_BITS<span class="Delimiter">,</span>
 <span id="L524" class="LineNr">524 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L525" class="LineNr">525 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;or-bits&quot;</span><span class="Delimiter">,</span> OR_BITS<span class="Delimiter">);</span>
+<span id="L525" class="LineNr">525 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;or-bits&quot;</span><span class="Delimiter">,</span> OR_BITS<span class="Delimiter">);</span>
 <span id="L526" class="LineNr">526 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L527" class="LineNr">527 </span><span class="Normal">case</span> OR_BITS: <span class="Delimiter">{</span>
 <span id="L528" class="LineNr">528 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L529" class="LineNr">529 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'or-bits' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L529" class="LineNr">529 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'or-bits' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L530" class="LineNr">530 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L531" class="LineNr">531 </span>  <span class="Delimiter">}</span>
 <span id="L532" class="LineNr">532 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> || !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L533" class="LineNr">533 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'or-bits' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L533" class="LineNr">533 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'or-bits' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L534" class="LineNr">534 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L535" class="LineNr">535 </span>  <span class="Delimiter">}</span>
 <span id="L536" class="LineNr">536 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L537" class="LineNr">537 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'or-bits' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L537" class="LineNr">537 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'or-bits' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L538" class="LineNr">538 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L539" class="LineNr">539 </span>  <span class="Delimiter">}</span>
 <span id="L540" class="LineNr">540 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L541" class="LineNr">541 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'or-bits' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L541" class="LineNr">541 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'or-bits' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L542" class="LineNr">542 </span>    <span class="Identifier">goto</span> finish_checking_instruction<span class="Delimiter">;</span>
 <span id="L543" class="LineNr">543 </span>  <span class="Delimiter">}</span>
 <span id="L544" class="LineNr">544 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -636,23 +638,23 @@ if ('onhashchange' in window) {
 <span id="L574" class="LineNr">574 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L575" class="LineNr">575 </span>XOR_BITS<span class="Delimiter">,</span>
 <span id="L576" class="LineNr">576 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L577" class="LineNr">577 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;xor-bits&quot;</span><span class="Delimiter">,</span> XOR_BITS<span class="Delimiter">);</span>
+<span id="L577" class="LineNr">577 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;xor-bits&quot;</span><span class="Delimiter">,</span> XOR_BITS<span class="Delimiter">);</span>
 <span id="L578" class="LineNr">578 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L579" class="LineNr">579 </span><span class="Normal">case</span> XOR_BITS: <span class="Delimiter">{</span>
 <span id="L580" class="LineNr">580 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L581" class="LineNr">581 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'xor-bits' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L581" class="LineNr">581 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'xor-bits' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L582" class="LineNr">582 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L583" class="LineNr">583 </span>  <span class="Delimiter">}</span>
 <span id="L584" class="LineNr">584 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> || !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L585" class="LineNr">585 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'xor-bits' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L585" class="LineNr">585 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'xor-bits' requires number ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L586" class="LineNr">586 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L587" class="LineNr">587 </span>  <span class="Delimiter">}</span>
 <span id="L588" class="LineNr">588 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L589" class="LineNr">589 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'xor-bits' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L589" class="LineNr">589 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'xor-bits' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L590" class="LineNr">590 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L591" class="LineNr">591 </span>  <span class="Delimiter">}</span>
 <span id="L592" class="LineNr">592 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L593" class="LineNr">593 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'xor-bits' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L593" class="LineNr">593 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'xor-bits' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L594" class="LineNr">594 </span>    <span class="Identifier">goto</span> finish_checking_instruction<span class="Delimiter">;</span>
 <span id="L595" class="LineNr">595 </span>  <span class="Delimiter">}</span>
 <span id="L596" class="LineNr">596 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -688,23 +690,23 @@ if ('onhashchange' in window) {
 <span id="L626" class="LineNr">626 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L627" class="LineNr">627 </span>FLIP_BITS<span class="Delimiter">,</span>
 <span id="L628" class="LineNr">628 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L629" class="LineNr">629 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;flip-bits&quot;</span><span class="Delimiter">,</span> FLIP_BITS<span class="Delimiter">);</span>
+<span id="L629" class="LineNr">629 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;flip-bits&quot;</span><span class="Delimiter">,</span> FLIP_BITS<span class="Delimiter">);</span>
 <span id="L630" class="LineNr">630 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L631" class="LineNr">631 </span><span class="Normal">case</span> FLIP_BITS: <span class="Delimiter">{</span>
 <span id="L632" class="LineNr">632 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L633" class="LineNr">633 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'flip-bits' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L633" class="LineNr">633 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'flip-bits' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L634" class="LineNr">634 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L635" class="LineNr">635 </span>  <span class="Delimiter">}</span>
 <span id="L636" class="LineNr">636 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L637" class="LineNr">637 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'flip-bits' requires a number ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L637" class="LineNr">637 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'flip-bits' requires a number ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L638" class="LineNr">638 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L639" class="LineNr">639 </span>  <span class="Delimiter">}</span>
 <span id="L640" class="LineNr">640 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L641" class="LineNr">641 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'flip-bits' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L641" class="LineNr">641 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'flip-bits' yields one product in '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L642" class="LineNr">642 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L643" class="LineNr">643 </span>  <span class="Delimiter">}</span>
 <span id="L644" class="LineNr">644 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; !is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L645" class="LineNr">645 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'flip-bits' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L645" class="LineNr">645 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'flip-bits' should yield a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L646" class="LineNr">646 </span>    <span class="Identifier">goto</span> finish_checking_instruction<span class="Delimiter">;</span>
 <span id="L647" class="LineNr">647 </span>  <span class="Delimiter">}</span>
 <span id="L648" class="LineNr">648 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -745,15 +747,15 @@ if ('onhashchange' in window) {
 <span id="L683" class="LineNr">683 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L684" class="LineNr">684 </span>ROUND<span class="Delimiter">,</span>
 <span id="L685" class="LineNr">685 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L686" class="LineNr">686 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;round&quot;</span><span class="Delimiter">,</span> ROUND<span class="Delimiter">);</span>
+<span id="L686" class="LineNr">686 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;round&quot;</span><span class="Delimiter">,</span> ROUND<span class="Delimiter">);</span>
 <span id="L687" class="LineNr">687 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L688" class="LineNr">688 </span><span class="Normal">case</span> ROUND: <span class="Delimiter">{</span>
 <span id="L689" class="LineNr">689 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L690" class="LineNr">690 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'round' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L690" class="LineNr">690 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'round' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L691" class="LineNr">691 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L692" class="LineNr">692 </span>  <span class="Delimiter">}</span>
 <span id="L693" class="LineNr">693 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L694" class="LineNr">694 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'round' should be a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L694" class="LineNr">694 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'round' should be a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L695" class="LineNr">695 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L696" class="LineNr">696 </span>  <span class="Delimiter">}</span>
 <span id="L697" class="LineNr">697 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -786,15 +788,15 @@ if ('onhashchange' in window) {
 <span id="L724" class="LineNr">724 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L725" class="LineNr">725 </span>TRUNCATE<span class="Delimiter">,</span>
 <span id="L726" class="LineNr">726 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L727" class="LineNr">727 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;truncate&quot;</span><span class="Delimiter">,</span> TRUNCATE<span class="Delimiter">);</span>
+<span id="L727" class="LineNr">727 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;truncate&quot;</span><span class="Delimiter">,</span> TRUNCATE<span class="Delimiter">);</span>
 <span id="L728" class="LineNr">728 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L729" class="LineNr">729 </span><span class="Normal">case</span> TRUNCATE: <span class="Delimiter">{</span>
 <span id="L730" class="LineNr">730 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L731" class="LineNr">731 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'truncate' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L731" class="LineNr">731 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'truncate' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L732" class="LineNr">732 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L733" class="LineNr">733 </span>  <span class="Delimiter">}</span>
 <span id="L734" class="LineNr">734 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L735" class="LineNr">735 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'truncate' should be a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L735" class="LineNr">735 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'truncate' should be a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L736" class="LineNr">736 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L737" class="LineNr">737 </span>  <span class="Delimiter">}</span>
 <span id="L738" class="LineNr">738 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -821,15 +823,15 @@ if ('onhashchange' in window) {
 <span id="L759" class="LineNr">759 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L760" class="LineNr">760 </span>SQUARE_ROOT<span class="Delimiter">,</span>
 <span id="L761" class="LineNr">761 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L762" class="LineNr">762 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;square-root&quot;</span><span class="Delimiter">,</span> SQUARE_ROOT<span class="Delimiter">);</span>
+<span id="L762" class="LineNr">762 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;square-root&quot;</span><span class="Delimiter">,</span> SQUARE_ROOT<span class="Delimiter">);</span>
 <span id="L763" class="LineNr">763 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L764" class="LineNr">764 </span><span class="Normal">case</span> SQUARE_ROOT: <span class="Delimiter">{</span>
 <span id="L765" class="LineNr">765 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L766" class="LineNr">766 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'square-root' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L766" class="LineNr">766 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'square-root' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L767" class="LineNr">767 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L768" class="LineNr">768 </span>  <span class="Delimiter">}</span>
 <span id="L769" class="LineNr">769 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L770" class="LineNr">770 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'square-root' should be a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L770" class="LineNr">770 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'square-root' should be a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L771" class="LineNr">771 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L772" class="LineNr">772 </span>  <span class="Delimiter">}</span>
 <span id="L773" class="LineNr">773 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
@@ -844,23 +846,23 @@ if ('onhashchange' in window) {
 <span id="L782" class="LineNr">782 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 <span id="L783" class="LineNr">783 </span>CHARACTER_TO_CODE<span class="Delimiter">,</span>
 <span id="L784" class="LineNr">784 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-<span id="L785" class="LineNr">785 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;character-to-code&quot;</span><span class="Delimiter">,</span> CHARACTER_TO_CODE<span class="Delimiter">);</span>
+<span id="L785" class="LineNr">785 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;character-to-code&quot;</span><span class="Delimiter">,</span> CHARACTER_TO_CODE<span class="Delimiter">);</span>
 <span id="L786" class="LineNr">786 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
 <span id="L787" class="LineNr">787 </span><span class="Normal">case</span> CHARACTER_TO_CODE: <span class="Delimiter">{</span>
 <span id="L788" class="LineNr">788 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L789" class="LineNr">789 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'character-to-code' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L789" class="LineNr">789 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'character-to-code' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L790" class="LineNr">790 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L791" class="LineNr">791 </span>  <span class="Delimiter">}</span>
 <span id="L792" class="LineNr">792 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_character<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L793" class="LineNr">793 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'character-to-code' should be a character, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L793" class="LineNr">793 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of 'character-to-code' should be a character, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L794" class="LineNr">794 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L795" class="LineNr">795 </span>  <span class="Delimiter">}</span>
 <span id="L796" class="LineNr">796 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L797" class="LineNr">797 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'character-to-code' requires exactly one product, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L797" class="LineNr">797 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'character-to-code' requires exactly one product, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L798" class="LineNr">798 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L799" class="LineNr">799 </span>  <span class="Delimiter">}</span>
 <span id="L800" class="LineNr">800 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L801" class="LineNr">801 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first product of 'character-to-code' should be a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
+<span id="L801" class="LineNr">801 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first product of 'character-to-code' should be a number, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
 <span id="L802" class="LineNr">802 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L803" class="LineNr">803 </span>  <span class="Delimiter">}</span>
 <span id="L804" class="LineNr">804 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>