gecko-dev/gfx/2d/BigEndianInts.h

80 строки
1.6 KiB
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/. */
#ifndef mozilla_BigEndianInts_h
#define mozilla_BigEndianInts_h
#include "mozilla/Endian.h"
namespace mozilla {
#pragma pack(push, 1)
struct BigEndianUint16
{
#ifdef __SUNPRO_CC
BigEndianUint16& operator=(const uint16_t aValue)
{
value = NativeEndian::swapToBigEndian(aValue);
return *this;
}
#else
MOZ_IMPLICIT BigEndianUint16(const uint16_t aValue)
{
value = NativeEndian::swapToBigEndian(aValue);
}
#endif
operator uint16_t() const
{
return NativeEndian::swapFromBigEndian(value);
}
friend inline bool
operator==(const BigEndianUint16& lhs, const BigEndianUint16& rhs)
{
return lhs.value == rhs.value;
}
friend inline bool
operator!=(const BigEndianUint16& lhs, const BigEndianUint16& rhs)
{
return !(lhs == rhs);
}
private:
uint16_t value;
};
struct BigEndianUint32
{
#ifdef __SUNPRO_CC
BigEndianUint32& operator=(const uint32_t aValue)
{
value = NativeEndian::swapToBigEndian(aValue);
return *this;
}
#else
MOZ_IMPLICIT BigEndianUint32(const uint32_t aValue)
{
value = NativeEndian::swapToBigEndian(aValue);
}
#endif
operator uint32_t() const
{
return NativeEndian::swapFromBigEndian(value);
}
private:
uint32_t value;
};
#pragma pack(pop)
} // mozilla
#endif // mozilla_BigEndianInts_h