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authorKartik Agaram <vc@akkartik.com>2019-07-17 19:11:26 -0700
committerKartik Agaram <vc@akkartik.com>2019-07-17 19:11:26 -0700
commit2a13be5fd73877cc73c0c50ccd3ab7fadb41a682 (patch)
tree681964e386abfa144a420e66834df9a48551cf28 /062convert_ingredients_to_text.cc
parent22bb33eb477ab0942be717f8e5499fe339eafc65 (diff)
downloadmu-2a13be5fd73877cc73c0c50ccd3ab7fadb41a682.tar.gz
5413
Bugfix twelve: ModR/M was being incorrectly computed.

This is one of two problems with subx/examples/ex3, so no new passing
examples.
Diffstat (limited to '062convert_ingredients_to_text.cc')
0 files changed, 0 insertions, 0 deletions
#008800 } /* Keyword.Pseudo */ .highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */ .highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */ .highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */ .highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
//: Support literal non-integers.

:(scenarios load)
:(scenario noninteger_literal)
def main [
  1:number <- copy 3.14159
]
+parse:   ingredient: {3.14159: "literal-fractional-number"}

:(after "Parsing reagent(string s)")
if (is_noninteger(s)) {
  name = s;
  type = new type_tree("literal-fractional-number", 0);
  set_value(to_double(s));
  return;
}

:(code)
bool is_noninteger(const string& s) {
  return s.find_first_not_of("0123456789-.") == string::npos  // no other characters
      && s.find_first_of("0123456789") != string::npos  // at least one digit
      && s.find('-', 1) == string::npos  // '-' only at first position
      && std::count(s.begin(), s.end(), '.') == 1;  // exactly one decimal point
}

double to_double(string n) {
  char* end = NULL;
  // safe because string.c_str() is guaranteed to be null-terminated
  double result = strtod(n.c_str(), &end);
  assert(*end == '\0');
  return result;
}

void test_is_noninteger() {
  CHECK(!is_noninteger("1234"));
  CHECK(!is_noninteger("1a2"));
  CHECK(is_noninteger("234.0"));
  CHECK(!is_noninteger("..."));
  CHECK(!is_noninteger("."));
  CHECK(is_noninteger("2."));
  CHECK(is_noninteger(".2"));
  CHECK(is_noninteger("-.2"));
  CHECK(is_noninteger("-2."));
  CHECK(!is_noninteger("--.2"));
  CHECK(!is_noninteger(".-2"));
  CHECK(!is_noninteger("..2"));
}