|  | //===-- MathExtras.cpp - Implement the MathExtras header --------------===// | 
|  | // | 
|  | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | 
|  | // See https://llvm.org/LICENSE.txt for license information. | 
|  | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | 
|  | // | 
|  | //===----------------------------------------------------------------------===// | 
|  | // | 
|  | // This file implements the MathExtras.h header | 
|  | // | 
|  | //===----------------------------------------------------------------------===// | 
|  |  | 
|  | #include "llvm/Support/MathExtras.h" | 
|  |  | 
|  | #ifdef _MSC_VER | 
|  | #include <limits> | 
|  | #else | 
|  | #include <math.h> | 
|  | #endif | 
|  |  | 
|  | namespace llvm { | 
|  |  | 
|  | #if defined(_MSC_VER) | 
|  | // Visual Studio defines the HUGE_VAL class of macros using purposeful | 
|  | // constant arithmetic overflow, which it then warns on when encountered. | 
|  | const float huge_valf = std::numeric_limits<float>::infinity(); | 
|  | #else | 
|  | const float huge_valf = HUGE_VALF; | 
|  | #endif | 
|  |  | 
|  | } |