LLVM  9.0.0svn
MathExtras.cpp
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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 
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 }
This class represents lattice values for constants.
Definition: AllocatorList.h:23
const float huge_valf
Use this rather than HUGE_VALF; the latter causes warnings on MSVC.
Definition: MathExtras.cpp:28
#define HUGE_VALF
Definition: DataTypes.h:87