1 //===-- MathExtras.cpp - Implement the MathExtras header --------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file implements the MathExtras.h header 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "llvm/Support/MathExtras.h" 14 15 #ifdef _MSC_VER 16 #include <limits> 17 #else 18 #include <math.h> 19 #endif 20 21 namespace llvm { 22 23 #if defined(_MSC_VER) 24 // Visual Studio defines the HUGE_VAL class of macros using purposeful 25 // constant arithmetic overflow, which it then warns on when encountered. 26 const float huge_valf = std::numeric_limits<float>::infinity(); 27 #else 28 const float huge_valf = HUGE_VALF; 29 #endif 30 31 } 32