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Added IsNAN

This commit is contained in:
Paolo Cignoni 2007-07-24 07:09:17 +00:00
parent c3ce8910de
commit 68effd0f7a
1 changed files with 18 additions and 0 deletions
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18
vcg/math/base.h
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@ -24,6 +24,9 @@
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$Log: not supported by cvs2svn $
Revision 1.21 2007/01/08 09:23:49 pietroni
added explicit cast in function inline float Sqrt(const int v) in order to avoid warnings
Revision 1.20 2006/10/13 13:14:50 cignoni
Added two sqrt templates for resolving ambiguity of sqrt(int)
@ -170,6 +173,21 @@ inline float ToRad(const float &a){return float(M_PI)*a/180.0f;}
inline double ToDeg(const double &a){return a*180.0/M_PI;}
inline double ToRad(const double &a){return M_PI*a/180.0;}
#if defined(_MSC_VER) // Microsoft Visual C++
template<class T> int IsNAN(T t) { return _isnan(t); }
#elif defined(__GNUC__) // GCC
template<class T> int IsNAN(T t) { return isnan(t); }
#else // generic
template<class T> int IsNAN(T t)
{
if(std::numeric_limits<T>::has_infinity)
return !(t <= std::numeric_limits<T>::infinity());
else
return t != t;
}
#endif
} // End math namespace
/// a type that stands for "void". Useful for Parameter type of a point.