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      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 } // namespace llvm
     32