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0033671: Coding - GeomTools performance update #19

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Dec 21, 2024
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0033671: Coding - GeomTools performance update #19

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21 changes: 13 additions & 8 deletions src/GeomTools/GeomTools.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -96,16 +96,21 @@ Handle(GeomTools_UndefinedTypeHandler) GeomTools::GetUndefinedTypeHandler()
//purpose :
//=======================================================================

void GeomTools::GetReal(Standard_IStream& IS,Standard_Real& theValue)
void GeomTools::GetReal(Standard_IStream& IS, Standard_Real& theValue)
{
theValue = 0.;
if (IS.eof())
if (IS.eof())
{
return;

char buffer[256];
buffer[0] = '\0';
std::streamsize anOldWide = IS.width(256);
IS >> buffer;
}
// According IEEE-754 Specification and standard stream parameters
// the most optimal buffer length not less then 25
constexpr size_t THE_BUFFER_SIZE = 32;
char aBuffer[THE_BUFFER_SIZE];

aBuffer[0] = '\0';
std::streamsize anOldWide = IS.width(THE_BUFFER_SIZE - 1);
IS >> aBuffer;
IS.width(anOldWide);
theValue = Strtod(buffer, NULL);
theValue = Strtod(aBuffer, nullptr);
}
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