mfbt/FloatingPoint.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 /* Implementations of FloatingPoint functions */
   8
   9 #include "mozilla/FloatingPoint.h"
  10
  11 namespace mozilla {
  12
  13 bool
  14 IsFloat32Representable(double aFloat32)
  15 {
  16   float asFloat = static_cast<float>(aFloat32);
  17   double floatAsDouble = static_cast<double>(asFloat);
  18   return floatAsDouble == aFloat32;
  19 }
  20
  21 } /* namespace mozilla */