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<QtEndian> - Функции преобразования порядка байтов

Заголовочный файл <QtEndian> предоставляет функции для преобразования между прямым (little endian) и обратным порядком (big endian) представления чисел. Далее...

Функции

• T qFromBigEndian ( const uchar * src )
• T qFromBigEndian ( T src )
• T qFromLittleEndian ( const uchar * src )
• T qFromLittleEndian ( T src )
• void qToBigEndian ( T src, uchar * dest )
• T qToBigEndian ( T src )
• void qToLittleEndian ( T src, uchar * dest )
• T qToLittleEndian ( T src )

Описание функций

T qFromBigEndian ( const uchar * src )

Reads a big-endian number from memory location src and returns the number in the host byte order representation. On CPU architectures where the host byte order is little-endian (such as x86) this will swap the byte order; otherwise it will just read from src.

Note: Template type T can either be a qint16, qint32 or qint64. Other types of integers, e.g., qlong, are not applicable.

There are no data alignment constraints for src.

Эта функция была введена в Qt 4.3.

See also qFromLittleEndian(), qToBigEndian(), and qToLittleEndian().

T qFromBigEndian ( T src )

Это перегруженная функция.

Converts src from big-endian byte order and returns the number in host byte order representation of that number. On CPU architectures where the host byte order is little-endian (such as x86) this will return src with the byte order swapped; otherwise it will return src unmodified.

Эта функция была введена в Qt 4.3.

T qFromLittleEndian ( const uchar * src )

Reads a little-endian number from memory location src and returns the number in the host byte order representation. On CPU architectures where the host byte order is big-endian (such as PowerPC) this will swap the byte order; otherwise it will just read from src.

Note: Template type T can either be a qint16, qint32 or qint64. Other types of integers, e.g., qlong, are not applicable.

There are no data alignment constraints for src.

Эта функция была введена в Qt 4.3.

See also qFromBigEndian(), qToBigEndian(), and qToLittleEndian().

T qFromLittleEndian ( T src )

Это перегруженная функция.

Converts src from little-endian byte order and returns the number in host byte order representation of that number. On CPU architectures where the host byte order is big-endian (such as PowerPC) this will return src with the byte order swapped; otherwise it will return src unmodified.

Эта функция была введена в Qt 4.3.

void qToBigEndian ( T src, uchar * dest )

Writes the number src with template type T to the memory location at dest in big-endian byte order.

Note that template type T can only be an integer data type (signed or unsigned).

There are no data alignment constraints for dest.

Эта функция была введена в Qt 4.3.

See also qFromBigEndian(), qFromLittleEndian(), and qToLittleEndian().

T qToBigEndian ( T src )

Это перегруженная функция.

Converts src from host byte order and returns the number in big-endian byte order representation of that number. On CPU architectures where the host byte order is little-endian (such as x86) this will return src with the byte order swapped; otherwise it will return src unmodified.

Эта функция была введена в Qt 4.3.

void qToLittleEndian ( T src, uchar * dest )

Writes the number src with template type T to the memory location at dest in little-endian byte order.

Note that template type T can only be an integer data type (signed or unsigned).

There are no data alignment constraints for dest.

Эта функция была введена в Qt 4.3.

See also qFromBigEndian(), qFromLittleEndian(), and qToBigEndian().

T qToLittleEndian ( T src )

Это перегруженная функция.

Converts src from host byte order and returns the number in little-endian byte order representation of that number. On CPU architectures where the host byte order is big-endian (such as PowerPC) this will return src with the byte order swapped; otherwise it will return src unmodified.

Эта функция была введена в Qt 4.3.