lib/Support/MathExtras.cpp

   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 }