gecko-dev/mfbt/FloatingPoint.cpp

21 строка
593 B
C++
Исходник Обычный вид История

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 x)
{
float asFloat = static_cast<float>(x);
double floatAsDouble = static_cast<double>(asFloat);
return floatAsDouble == x;
}
} /* namespace mozilla */