author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
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/**************************************************************************** |
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** |
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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** All rights reserved. |
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** Contact: Nokia Corporation (qt-info@nokia.com) |
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** |
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** This file is part of the documentation of the Qt Toolkit. |
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** |
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** $QT_BEGIN_LICENSE:FDL$ |
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** Commercial Usage |
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** Licensees holding valid Qt Commercial licenses may use this file in |
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** accordance with the Qt Commercial License Agreement provided with the |
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** Software or, alternatively, in accordance with the terms contained in a |
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** written agreement between you and Nokia. |
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** |
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** GNU Free Documentation License |
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** Alternatively, this file may be used under the terms of the GNU Free |
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** Documentation License version 1.3 as published by the Free Software |
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** Foundation and appearing in the file included in the packaging of this |
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** file. |
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** |
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** If you have questions regarding the use of this file, please contact |
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** Nokia at qt-info@nokia.com. |
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** $QT_END_LICENSE$ |
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** |
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****************************************************************************/ |
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/*! |
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\headerfile <QtEndian> |
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\title Endian Conversion Functions |
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\ingroup funclists |
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\brief The <QtEndian> header provides functions to convert between |
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little and big endian representations of numbers. |
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*/ |
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/*! |
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\fn T qFromBigEndian(const uchar *src) |
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\since 4.3 |
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\relates <QtEndian> |
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Reads a big-endian number from memory location \a src and returns the number in the |
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host byte order representation. |
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On CPU architectures where the host byte order is little-endian (such as x86) this |
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will swap the byte order; otherwise it will just read from \a src. |
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\note Template type \c{T} can either be a qint16, qint32 or qint64. Other types of |
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integers, e.g., qlong, are not applicable. |
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There are no data alignment constraints for \a src. |
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\sa qFromLittleEndian() |
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\sa qToBigEndian() |
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\sa qToLittleEndian() |
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*/ |
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/*! |
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\fn T qFromBigEndian(T src) |
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\since 4.3 |
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\relates <QtEndian> |
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\overload |
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Converts \a src from big-endian byte order and returns the number in host byte order |
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representation of that number. |
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On CPU architectures where the host byte order is little-endian (such as x86) this |
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will return \a src with the byte order swapped; otherwise it will return \a src |
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unmodified. |
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*/ |
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/*! |
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\fn T qFromLittleEndian(const uchar *src) |
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\since 4.3 |
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\relates <QtEndian> |
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Reads a little-endian number from memory location \a src and returns the number in |
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the host byte order representation. |
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On CPU architectures where the host byte order is big-endian (such as PowerPC) this |
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will swap the byte order; otherwise it will just read from \a src. |
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\note Template type \c{T} can either be a qint16, qint32 or qint64. Other types of |
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integers, e.g., qlong, are not applicable. |
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There are no data alignment constraints for \a src. |
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\sa qFromBigEndian() |
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\sa qToBigEndian() |
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\sa qToLittleEndian() |
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*/ |
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/*! |
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\fn T qFromLittleEndian(T src) |
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\since 4.3 |
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\relates <QtEndian> |
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\overload |
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Converts \a src from little-endian byte order and returns the number in host byte |
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order representation of that number. |
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On CPU architectures where the host byte order is big-endian (such as PowerPC) this |
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will return \a src with the byte order swapped; otherwise it will return \a src |
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unmodified. |
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*/ |
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/*! |
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\fn void qToBigEndian(T src, uchar *dest) |
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\since 4.3 |
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\relates <QtEndian> |
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Writes the number \a src with template type \c{T} to the memory location at \a dest |
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in big-endian byte order. |
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Note that template type \c{T} can only be an integer data type (signed or unsigned). |
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There are no data alignment constraints for \a dest. |
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\sa qFromBigEndian() |
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\sa qFromLittleEndian() |
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\sa qToLittleEndian() |
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*/ |
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/*! |
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\fn T qToBigEndian(T src) |
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\since 4.3 |
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\relates <QtEndian> |
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\overload |
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Converts \a src from host byte order and returns the number in big-endian byte order |
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representation of that number. |
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On CPU architectures where the host byte order is little-endian (such as x86) this |
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will return \a src with the byte order swapped; otherwise it will return \a src |
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unmodified. |
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*/ |
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/*! |
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\fn void qToLittleEndian(T src, uchar *dest) |
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\since 4.3 |
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\relates <QtEndian> |
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Writes the number \a src with template type \c{T} to the memory location at \a dest |
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in little-endian byte order. |
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||
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Note that template type \c{T} can only be an integer data type (signed or unsigned). |
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There are no data alignment constraints for \a dest. |
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||
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\sa qFromBigEndian() |
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\sa qFromLittleEndian() |
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\sa qToBigEndian() |
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*/ |
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/*! |
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\fn T qToLittleEndian(T src) |
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\since 4.3 |
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\relates <QtEndian> |
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\overload |
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||
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Converts \a src from host byte order and returns the number in little-endian byte |
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order representation of that number. |
|
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On CPU architectures where the host byte order is big-endian (such as PowerPC) this |
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will return \a src with the byte order swapped; otherwise it will return \a src |
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unmodified. |
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*/ |
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