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 14namespace base { 15 16template <typename Float> 17inline 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 25template <typename Float> 26inline 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