1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_FLOAT_UTIL_H_ 6 #define BASE_FLOAT_UTIL_H_ 7 8 #include "build/build_config.h" 9 10 #include <float.h> 11 12 #include <cmath> 13 14 namespace base { 15 16 template <typename Float> 17 inline bool IsFinite(const Float& number) { 18 #if defined(OS_POSIX) 19 return std::isfinite(number) != 0; 20 #elif defined(OS_WIN) 21 return _finite(number) != 0; 22 #endif 23 } 24 25 template <typename Float> 26 inline bool IsNaN(const Float& number) { 27 #if defined(OS_POSIX) 28 return std::isnan(number) != 0; 29 #elif defined(OS_WIN) 30 return _isnan(number) != 0; 31 #endif 32 } 33 34 } // namespace base 35 36 #endif // BASE_FLOAT_UTIL_H_ 37
