1 #ifndef __MATH_AUX_H 2 #define __MATH_AUX_H 3 4 #include <limits> 5 6 #undef __STD 7 #if !defined (STLPORT) || defined (_STLP_USE_NAMESPACES) 8 # define __STD std:: 9 #else 10 # define __STD 11 #endif 12 13 /* 14 * This function is not only used to compare floating point values with a tolerance, 15 * it also leads to ambiguity problems if the called functions do not have the 16 * right prototype. 17 */ 18 template <class _Tp> 19 bool are_equals(_Tp val, _Tp ref) { 20 if (val < ref) { 21 return (ref - val) <= __STD numeric_limits<_Tp>::epsilon(); 22 } 23 else { 24 return (val - ref) <= __STD numeric_limits<_Tp>::epsilon(); 25 } 26 } 27 28 #undef __STD 29 30 #endif // __MATH_AUX_H 31
