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(selective-load "mu.arc" section-level)
(set allow-raw-addresses*)

(section 100

(reset)
(new-trace "new-screen")
(add-code:readfile "edit.mu")
(add-code
  '((function test-new-screen [
      (1:screen-address/global <- new-screen 5:literal 5:literal)
     ])))
;? (each stmt function*!new-screen
;?   (prn stmt))
(let routine make-routine!test-new-screen
  (let before rep.routine!alloc
;?     (= dump-trace* (obj blacklist '("sz" "m" "setm" "addr" "cvt0" "cvt1")))
    (run 'test-new-screen)
;?     (prn memory*)
;?     (prn memory*.2001)
    (when (~is (memory* memory*.1) 5)  ; number of rows
      (prn "F - newly-allocated screen doesn't have the right number of rows: @(memory* memory*!2001)"))
    (let row-pointers (let base (+ 1 memory*.1)
                        (range base (+ base 4)))
  ;?     (prn row-pointers)
      (when (some nil (map memory* row-pointers))
        (prn "F - newly-allocated screen didn't initialize all of its row pointers"))
      (when (~all 5 (map memory* (map memory* row-pointers)))
        (prn "F - newly-allocated screen didn't initialize all of its row lengths")))))

(reset)

)  ; section 100 for all editor code
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<a href='https://github.com/akkartik/mu/blob/master/015literal_noninteger.cc'>https://github.com/akkartik/mu/blob/master/015literal_noninteger.cc</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: Support literal non-integers.</span>
<span id="L2" class="LineNr"> 2 </span>
<span id="L3" class="LineNr"> 3 </span><span class="Delimiter">:(scenarios load)</span>
<span id="L4" class="LineNr"> 4 </span><span class="Delimiter">:(scenario noninteger_literal)</span>
<span id="L5" class="LineNr"> 5 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L6" class="LineNr"> 6 </span>  <span class="Constant">1</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">3.14159</span>
<span id="L7" class="LineNr"> 7 </span>]
<span id="L8" class="LineNr"> 8 </span><span class="traceContains">+parse:   ingredient: {3.14159: &quot;literal-fractional-number&quot;}</span>
<span id="L9" class="LineNr"> 9 </span>
<span id="L10" class="LineNr">10 </span><span class="Delimiter">:(after &quot;Parsing reagent(string s)&quot;)</span>
<span id="L11" class="LineNr">11 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='015literal_noninteger.cc.html#L19'>is_noninteger</a><span class="Delimiter">(</span>s<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L12" class="LineNr">12 </span>  name = s<span class="Delimiter">;</span>
<span id="L13" class="LineNr">13 </span>  type = <span class="Normal">new</span> type_tree<span class="Delimiter">(</span><span class="Constant">&quot;literal-fractional-number&quot;</span><span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L14" class="LineNr">14 </span>  <a href='010vm.cc.html#L67'>set_value</a><span class="Delimiter">(</span><a href='015literal_noninteger.cc.html#L26'>to_double</a><span class="Delimiter">(</span>s<span class="Delimiter">));</span>
<span id="L15" class="LineNr">15 </span>  <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L16" class="LineNr">16 </span><span class="Delimiter">}</span>
<span id="L17" class="LineNr">17 </span>
<span id="L18" class="LineNr">18 </span><span class="Delimiter">:(code)</span>
<span id="L19" class="LineNr">19 </span><span class="Normal">bool</span> <a href='015literal_noninteger.cc.html#L19'>is_noninteger</a><span class="Delimiter">(</span><span class="Normal">const</span> string&amp; s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L20" class="LineNr">20 </span>  <span class="Identifier">return</span> s<span class="Delimiter">.</span>find_first_not_of<span class="Delimiter">(</span><span class="Constant">&quot;0123456789-.&quot;</span><span class="Delimiter">)</span> == string::npos  <span class="Comment">// no other characters</span>
<span id="L21" class="LineNr">21 </span>      &amp;&amp; s<span class="Delimiter">.</span>find_first_of<span class="Delimiter">(</span><span class="Constant">&quot;0123456789&quot;</span><span class="Delimiter">)</span> != string::npos  <span class="Comment">// at least one digit</span>
<span id="L22" class="LineNr">22 </span>      &amp;&amp; s<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">'-'</span><span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">)</span> == string::npos  <span class="Comment">// '-' only at first position</span>
<span id="L23" class="LineNr">23 </span>      &amp;&amp; std::count<span class="Delimiter">(</span>s<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> s<span class="Delimiter">.</span><a href='003trace.cc.html#L225'>end</a><span class="Delimiter">(),</span> <span class="Constant">'.'</span><span class="Delimiter">)</span> == <span class="Constant">1</span><span class="Delimiter">;</span>  <span class="Comment">// exactly one decimal point</span>
<span id="L24" class="LineNr">24 </span><span class="Delimiter">}</span>
<span id="L25" class="LineNr">25 </span>
<span id="L26" class="LineNr">26 </span><span class="Normal">double</span> <a href='015literal_noninteger.cc.html#L26'>to_double</a><span class="Delimiter">(</span>string n<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L27" class="LineNr">27 </span>  <span class="Normal">char</span>* <a href='003trace.cc.html#L225'>end</a> = <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span id="L28" class="LineNr">28 </span>  <span class="Comment">// safe because string.c_str() is guaranteed to be null-terminated</span>
<span id="L29" class="LineNr">29 </span>  <span class="Normal">double</span> result = strtod<span class="Delimiter">(</span>n<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> &amp;end<span class="Delimiter">);</span>
<span id="L30" class="LineNr">30 </span>  assert<span class="Delimiter">(</span>*end == <span class="cSpecial">'\0'</span><span class="Delimiter">);</span>
<span id="L31" class="LineNr">31 </span>  <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L32" class="LineNr">32 </span><span class="Delimiter">}</span>
<span id="L33" class="LineNr">33 </span>
<span id="L34" class="LineNr">34 </span><span class="Normal">void</span> <a href='015literal_noninteger.cc.html#L34'>test_is_noninteger</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L35" class="LineNr">35 </span>  <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">&quot;1234&quot;</span><span class="Delimiter">));</span>
<span id="L36" class="LineNr">36 </span>  <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">&quot;1a2&quot;</span><span class="Delimiter">));</span>
<span id="L37" class="LineNr">37 </span>  <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span><a href='015literal_noninteger.cc.html#L19'>is_noninteger</a><span class="Delimiter">(</span><span class="Constant">&quot;234.0&quot;</span><span class="Delimiter">));</span>
<span id="L38" class="LineNr">38 </span>  <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">&quot;...&quot;</span><span class="Delimiter">));</span>
<span id="L39" class="LineNr">39 </span>  <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">&quot;.&quot;</span><span class="Delimiter">));</span>
<span id="L40" class="LineNr">40 </span>  <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span><a href='015literal_noninteger.cc.html#L19'>is_noninteger</a><span class="Delimiter">(</span><span class="Constant">&quot;2.&quot;</span><span class="Delimiter">));</span>
<span id="L41" class="LineNr">41 </span>  <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span><a href='015literal_noninteger.cc.html#L19'>is_noninteger</a><span class="Delimiter">(</span><span class="Constant">&quot;.2&quot;</span><span class="Delimiter">));</span>
<span id="L42" class="LineNr">42 </span>  <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span><a href='015literal_noninteger.cc.html#L19'>is_noninteger</a><span class="Delimiter">(</span><span class="Constant">&quot;-.2&quot;</span><span class="Delimiter">));</span>
<span id="L43" class="LineNr">43 </span>  <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span><a href='015literal_noninteger.cc.html#L19'>is_noninteger</a><span class="Delimiter">(</span><span class="Constant">&quot;-2.&quot;</span><span class="Delimiter">));</span>
<span id="L44" class="LineNr">44 </span>  <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">&quot;--.2&quot;</span><span class="Delimiter">));</span>
<span id="L45" class="LineNr">45 </span>  <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">&quot;.-2&quot;</span><span class="Delimiter">));</span>
<span id="L46" class="LineNr">46 </span>  <a href='002test.cc.html#L24'>CHECK</a><span class="Delimiter">(</span>!is_noninteger<span class="Delimiter">(</span><span class="Constant">&quot;..2&quot;</span><span class="Delimiter">));</span>
<span id="L47" class="LineNr">47 </span><span class="Delimiter">}</span>
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