Bug 88721

Compile error: == [...]/WebKit-r119255/Source/WTF/wtf/MathExtras.h: In function 'bool std::wtf_isinf(float)': [...]/WebKit-r119255/Source/WTF/wtf/MathExtras.h:292:63: error: 'bool std::isinf(float)' is not 'constexpr' [...]/WebKit-r119255/Source/WTF/wtf/MathExtras.h: In function 'bool std::wtf_isinf(double)': [...]/WebKit-r119255/Source/WTF/wtf/MathExtras.h:293:64: error: 'bool std::isinf(double)' is not 'constexpr' [...]/WebKit-r119255/Source/WTF/wtf/MathExtras.h: In function 'bool std::wtf_isnan(float)': [...]/WebKit-r119255/Source/WTF/wtf/MathExtras.h:294:63: error: 'bool std::isnan(float)' is not 'constexpr' [...]/WebKit-r119255/Source/WTF/wtf/MathExtras.h: In function 'bool std::wtf_isnan(double)': [...]/WebKit-r119255/Source/WTF/wtf/MathExtras.h:295:64: error: 'bool std::isnan(double)' is not 'constexpr' == Concerns the following code: == #if COMPILER_QUIRK(GCC11_GLOBAL_ISINF_ISNAN) // A workaround to avoid conflicting declarations of isinf and isnan when compiling with GCC in C++11 mode. namespace std { constexpr bool wtf_isinf(float f) { return std::isinf(f); } constexpr bool wtf_isinf(double d) { return std::isinf(d); } constexpr bool wtf_isnan(float f) { return std::isnan(f); } constexpr bool wtf_isnan(double d) { return std::isnan(d); } }; using std::wtf_isinf; using std::wtf_isnan; #define isinf(x) wtf_isinf(x) #define isnan(x) wtf_isnan(x) #endif == Seems that with the gcc 4.6.3 the function std::isinf() is not marked constexpr, so wtf_isinf() may not be that either. After replacing "constexpr" with "inline" it does compile.