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