Mypal/mfbt/FloatingPoint.cpp

22 lines
649 B
C++

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