1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mfbt/FloatingPoint.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,20 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/* Implementations of FloatingPoint functions */
1.10 +
1.11 +#include "mozilla/FloatingPoint.h"
1.12 +
1.13 +namespace mozilla {
1.14 +
1.15 +bool
1.16 +IsFloat32Representable(double x)
1.17 +{
1.18 + float asFloat = static_cast<float>(x);
1.19 + double floatAsDouble = static_cast<double>(asFloat);
1.20 + return floatAsDouble == x;
1.21 +}
1.22 +
1.23 +} /* namespace mozilla */
