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Simplified fp specials handling in XPath (using common faster implementation for both MSVC and BCC)

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git-svn-id: http://pugixml.googlecode.com/svn/trunk@480 99668b35-9821-0410-8761-19e4c4f06640
This commit is contained in:
arseny.kapoulkine 2010-05-31 07:56:13 +00:00
parent 51bb70cdcf
commit f1bfe4cc64
1 changed files with 3 additions and 24 deletions
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27
src/pugixpath.cpp
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@ -297,31 +297,10 @@ namespace
const char_t* convert_number_to_string_special(double value)
{
#if defined(_MSC_VER)
switch (_fpclass(value))
{
case _FPCLASS_SNAN:
case _FPCLASS_QNAN:
return PUGIXML_TEXT("NaN");
case _FPCLASS_NINF:
return PUGIXML_TEXT("-Infinity");
case _FPCLASS_NZ:
case _FPCLASS_PZ:
return PUGIXML_TEXT("0");
case _FPCLASS_PINF:
return PUGIXML_TEXT("Infinity");
default:
return 0;
}
#elif defined(__BORLANDC__) // _fpclass in BorlandC breaks fp flags
#if defined(_MSC_VER) || defined(__BORLANDC__)
if (_finite(value)) return (value == 0) ? PUGIXML_TEXT("0") : 0;
if (_isnan(value)) return PUGIXML_TEXT("NaN");
if (!_finite(value)) return PUGIXML_TEXT("-Infinity") + (value > 0);
if (value == 0) return PUGIXML_TEXT("0");
return 0;
return PUGIXML_TEXT("-Infinity") + (value > 0);
#elif defined(FP_NAN) && defined(FP_INFINITE) && defined(FP_ZERO)
switch (fpclassify(value))
{