1 //===-- MathExtras.cpp - Implement the MathExtras header --------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file implements the MathExtras.h header 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "llvm/Support/MathExtras.h" 15 16 #ifdef _MSC_VER 17 #include <limits> 18 #else 19 #include <math.h> 20 #endif 21 22 namespace llvm { 23 24 #if defined(_MSC_VER) 25 // Visual Studio defines the HUGE_VAL class of macros using purposeful 26 // constant arithmetic overflow, which it then warns on when encountered. 27 const float huge_valf = std::numeric_limits<float>::infinity(); 28 #else 29 const float huge_valf = HUGE_VALF; 30 #endif 31 32 } 33