qendian.h File Reference

(7a829eaf51853e0852db28b8b8223e1a62a3db0c)

#include <QtCore/qfloat16.h>
#include <QtCore/qglobal.h>
#include <limits>
#include <stdlib.h>
#include <string.h>

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Classes
class	QSpecialInteger< S >
class	QLittleEndianStorageType< T >
class	QBigEndianStorageType< T >
class	QTypeInfo< QLEInteger< T > >
class	QTypeInfo< QBEInteger< T > >

Typedefs
template<typename T >
using	QLEInteger = QSpecialInteger<QLittleEndianStorageType<T>>
	Constructs a QLEInteger with the given value.
template<typename T >
using	QBEInteger = QSpecialInteger<QBigEndianStorageType<T>>
	Constructs a QBEInteger with the given value.
typedef QLEInteger< qint16 >	qint16_le
typedef QLEInteger< qint32 >	qint32_le
typedef QLEInteger< qint64 >	qint64_le
typedef QLEInteger< quint16 >	quint16_le
typedef QLEInteger< quint32 >	quint32_le
typedef QLEInteger< quint64 >	quint64_le
typedef QBEInteger< qint16 >	qint16_be
typedef QBEInteger< qint32 >	qint32_be
typedef QBEInteger< qint64 >	qint64_be
typedef QBEInteger< quint16 >	quint16_be
typedef QBEInteger< quint32 >	quint32_be
typedef QBEInteger< quint64 >	quint64_be

Functions
template<typename T >
QT_BEGIN_NAMESPACE Q_ALWAYS_INLINE void	qToUnaligned (const T src, void *dest)
template<typename T >
Q_ALWAYS_INLINE T	qFromUnaligned (const void *src)
constexpr quint64	qbswap_helper (quint64 source)
constexpr quint32	qbswap_helper (quint32 source)
constexpr quint16	qbswap_helper (quint16 source)
constexpr quint8	qbswap_helper (quint8 source)
template<typename T , typename = std::enable_if_t<std::is_integral_v<T>>>
constexpr T	qbswap (T source)
template<typename Float >
Float	qbswapFloatHelper (Float source)
qfloat16	qbswap (qfloat16 source)
float	qbswap (float source)
double	qbswap (double source)
template<typename T >
void	qbswap (const T src, void *dest)
template<int Size>
void *	qbswap (const void *source, qsizetype count, void *dest) noexcept
template<>
void *	qbswap< 1 > (const void *source, qsizetype count, void *dest) noexcept
template<>
Q_CORE_EXPORT void *	qbswap< 2 > (const void *source, qsizetype count, void *dest) noexcept
template<>
Q_CORE_EXPORT void *	qbswap< 4 > (const void *source, qsizetype count, void *dest) noexcept
template<>
Q_CORE_EXPORT void *	qbswap< 8 > (const void *source, qsizetype count, void *dest) noexcept
template<typename T >
constexpr T	qToBigEndian (T source)
template<typename T >
constexpr T	qFromBigEndian (T source)
template<typename T >
constexpr T	qToLittleEndian (T source)
template<typename T >
constexpr T	qFromLittleEndian (T source)
template<typename T >
void	qToBigEndian (T src, void *dest)
template<typename T >
void	qToLittleEndian (T src, void *dest)
template<typename T >
void	qToBigEndian (const void *source, qsizetype count, void *dest)
template<typename T >
void	qToLittleEndian (const void *source, qsizetype count, void *dest)
template<typename T >
void	qFromBigEndian (const void *source, qsizetype count, void *dest)
template<typename T >
void	qFromLittleEndian (const void *source, qsizetype count, void *dest)
template<typename T >
T	qFromLittleEndian (const void *src)
template<>
quint8	qFromLittleEndian< quint8 > (const void *src)
template<>
qint8	qFromLittleEndian< qint8 > (const void *src)
template<class T >
T	qFromBigEndian (const void *src)
template<>
quint8	qFromBigEndian< quint8 > (const void *src)
template<>
qint8	qFromBigEndian< qint8 > (const void *src)

Typedef Documentation

QBEInteger

template<typename T >

template< typename T > QBEInteger::QBEInteger = QSpecialInteger<QBigEndianStorageType<T>>

Constructs a QBEInteger with the given value.

Definition at line 382 of file qendian.h.

qint16_be

typedef QBEInteger<qint16> qint16_be

Definition at line 399 of file qendian.h.

qint16_le

typedef QLEInteger<qint16> qint16_le

Definition at line 392 of file qendian.h.

qint32_be

typedef QBEInteger<qint32> qint32_be

Definition at line 400 of file qendian.h.

qint32_le

typedef QLEInteger<qint32> qint32_le

Definition at line 393 of file qendian.h.

qint64_be

typedef QBEInteger<qint64> qint64_be

Definition at line 401 of file qendian.h.

qint64_le

typedef QLEInteger<qint64> qint64_le

Definition at line 394 of file qendian.h.

QLEInteger

template<typename T >

template< typename T > QLEInteger::QLEInteger = QSpecialInteger<QLittleEndianStorageType<T>>

Constructs a QLEInteger with the given value.

Definition at line 379 of file qendian.h.

quint16_be

typedef QBEInteger<quint16> quint16_be

Definition at line 402 of file qendian.h.

quint16_le

typedef QLEInteger<quint16> quint16_le

Definition at line 395 of file qendian.h.

quint32_be

typedef QBEInteger<quint32> quint32_be

Definition at line 403 of file qendian.h.

quint32_le

typedef QLEInteger<quint32> quint32_le

Definition at line 396 of file qendian.h.

quint64_be

typedef QBEInteger<quint64> quint64_be

Definition at line 404 of file qendian.h.

quint64_le

typedef QLEInteger<quint64> quint64_le

Definition at line 397 of file qendian.h.

Function Documentation

qbswap() [1/6]

template<typename T >

void qbswap ( const T src, void * dest )

inline

Definition at line 156 of file qendian.h.

References qbswap().

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qbswap() [2/6]

template<int Size>

void * qbswap ( const void * source, qsizetype count, void * dest )

noexcept

qbswap() [3/6]

double qbswap ( double source )

inline

Definition at line 145 of file qendian.h.

References qbswapFloatHelper().

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qbswap() [4/6]

float qbswap ( float source )

inline

Definition at line 140 of file qendian.h.

References qbswapFloatHelper().

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qbswap() [5/6]

qfloat16 qbswap ( qfloat16 source )

inline

Definition at line 135 of file qendian.h.

References qbswapFloatHelper().

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qbswap() [6/6]

template<typename T , typename = std::enable_if_t<std::is_integral_v<T>>>

constexpr T qbswap ( T source )

inlineconstexpr

Definition at line 103 of file qendian.h.

References qbswap_helper().

Referenced by QUuid::QUuid(), bswapLoop(), QFontEngineFT::loadGlyph(), QDataStream::operator<<(), QDataStream::operator<<(), QDataStream::operator<<(), QDataStream::operator<<(), QDataStream::operator<<(), QDataStream::operator>>(), QDataStream::operator>>(), QDataStream::operator>>(), QDataStream::operator>>(), QDataStream::operator>>(), qbswap(), qbswapFloatHelper(), qFromLittleEndian(), qt_xcb_imageFormatForVisual(), qToLittleEndian(), and QUuid::toBytes().

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qbswap< 1 >()

template<>

void * qbswap< 1 > ( const void * source, qsizetype count, void * dest )

inlinenoexcept

Definition at line 162 of file qendian.h.

qbswap< 2 >()

template<>

Q_CORE_EXPORT void * qbswap< 2 > ( const void * source, qsizetype count, void * dest )

noexcept

Definition at line 860 of file qendian.cpp.

qbswap< 4 >()

template<>

Q_CORE_EXPORT void * qbswap< 4 > ( const void * source, qsizetype count, void * dest )

noexcept

Definition at line 869 of file qendian.cpp.

qbswap< 8 >()

template<>

Q_CORE_EXPORT void * qbswap< 8 > ( const void * source, qsizetype count, void * dest )

noexcept

Definition at line 878 of file qendian.cpp.

qbswap_helper() [1/4]

constexpr quint16 qbswap_helper ( quint16 source )

inlineconstexpr

Definition at line 84 of file qendian.h.

qbswap_helper() [2/4]

constexpr quint32 qbswap_helper ( quint32 source )

inlineconstexpr

Definition at line 75 of file qendian.h.

qbswap_helper() [3/4]

constexpr quint64 qbswap_helper ( quint64 source )

inlineconstexpr

Definition at line 62 of file qendian.h.

References Q_UINT64_C.

Referenced by qbswap().

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qbswap_helper() [4/4]

constexpr quint8 qbswap_helper ( quint8 source )

inlineconstexpr

Definition at line 91 of file qendian.h.

qbswapFloatHelper()

template<typename Float >

Float qbswapFloatHelper

(

Float

source

)

Definition at line 127 of file qendian.h.

References qbswap().

Referenced by qbswap(), qbswap(), and qbswap().

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qFromBigEndian() [1/3]

template<typename T >

void qFromBigEndian ( const void * source, qsizetype count, void * dest )

inline

Definition at line 189 of file qendian.h.

qFromBigEndian() [2/3]

template<class T >

T qFromBigEndian ( const void * src )

inline

Definition at line 238 of file qendian.h.

References qFromBigEndian().

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qFromBigEndian() [3/3]

template<typename T >

constexpr T qFromBigEndian ( T source )

inlineconstexpr

Definition at line 174 of file qendian.h.

Referenced by QResponseApdu::QResponseApdu(), LeCmacCalculator::calculateMac(), QHostAddressPrivate::classify(), QBigEndianStorageType< T >::fromSpecial(), getFamiliesAndSignatures(), getTrueTypeFontOffsets(), QMimeBinaryProvider::CacheFile::getUint16(), QMimeBinaryProvider::CacheFile::getUint32(), nameToOSType(), QTlsPrivate::X509CertificateGeneric::parse(), qFromBigEndian(), qt_getCanonicalFontNames(), qt_getEnglishName(), qt_memfill24(), sendAlternate(), and QTlsPrivate::X509CertificateOpenSSL::subjectAlternativeNames().

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qFromBigEndian< qint8 >()

template<>

qint8 qFromBigEndian< qint8 > ( const void * src )

inline

Definition at line 245 of file qendian.h.

References qint8.

qFromBigEndian< quint8 >()

template<>

quint8 qFromBigEndian< quint8 > ( const void * src )

inline

Definition at line 243 of file qendian.h.

Referenced by read8().

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qFromLittleEndian() [1/3]

template<typename T >

void qFromLittleEndian ( const void * source, qsizetype count, void * dest )

inline

Definition at line 191 of file qendian.h.

qFromLittleEndian() [2/3]

template<typename T >

T qFromLittleEndian ( const void * src )

inline

Definition at line 224 of file qendian.h.

References qFromLittleEndian().

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qFromLittleEndian() [3/3]

template<typename T >

constexpr T qFromLittleEndian ( T source )

inlineconstexpr

Definition at line 178 of file qendian.h.

References qbswap().

Referenced by QLittleEndianStorageType< T >::fromSpecial(), qFromLittleEndian(), and qStringFromUcs2Le().

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qFromLittleEndian< qint8 >()

template<>

qint8 qFromLittleEndian< qint8 > ( const void * src )

inline

Definition at line 231 of file qendian.h.

References qint8.

qFromLittleEndian< quint8 >()

template<>

quint8 qFromLittleEndian< quint8 > ( const void * src )

inline

Definition at line 229 of file qendian.h.

qFromUnaligned()

template<typename T >

Q_ALWAYS_INLINE T qFromUnaligned

(

const void *

src

)

Definition at line 47 of file qendian.h.

qToBigEndian() [1/3]

template<typename T >

void qToBigEndian ( const void * source, qsizetype count, void * dest )

inline

Definition at line 185 of file qendian.h.

qToBigEndian() [2/3]

template<typename T >

constexpr T qToBigEndian ( T source )

inlineconstexpr

Definition at line 172 of file qendian.h.

Referenced by _q_toHex(), Http2::FrameWriter::append(), bindFont(), DarwinBluetooth::cb_uuid(), QUtf16::convertFromUnicode(), QUtf32::convertFromUnicode(), QPasswordDigestor::deriveKeyPbkdf2(), QStringConverter::encodingForData(), QHostAddress::isInSubnet(), QV4::DataViewPrototype::method_setFloat(), nameFromOSType(), QTtfStream::operator<<(), QTtfStream::operator<<(), QTtfStream::operator<<(), QTtfStream::operator<<(), QTtfStream::operator<<(), QHostAddress::operator==(), QByteArray::qCompress(), QNetmask::setAddress(), QHostAddressPrivate::setAddress(), Http2::FrameWriter::start(), QUuid::toBytes(), and QBigEndianStorageType< T >::toSpecial().

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qToBigEndian() [3/3]

template<typename T >

void qToBigEndian ( T src, void * dest )

inline

Definition at line 180 of file qendian.h.

qToLittleEndian() [1/3]

template<typename T >

void qToLittleEndian ( const void * source, qsizetype count, void * dest )

inline

Definition at line 187 of file qendian.h.

qToLittleEndian() [2/3]

template<typename T >

constexpr T qToLittleEndian ( T source )

inlineconstexpr

Definition at line 176 of file qendian.h.

References qbswap().

Referenced by connectionUpdateData(), QUtf16::convertFromUnicode(), QUtf32::convertFromUnicode(), QStringConverter::encodingForData(), QV4::DataViewPrototype::method_setFloat(), QWinRTLowEnergyServiceHandler::obtainCharList(), QUuid::operator<<(), putBtData(), qStringAsUcs2Le(), QPacketProtocol::send(), HciManager::sendConnectionParameterUpdateRequest(), HciManager::sendConnectionUpdateCommand(), and QLittleEndianStorageType< T >::toSpecial().

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qToLittleEndian() [3/3]

template<typename T >

void qToLittleEndian ( T src, void * dest )

inline

Definition at line 182 of file qendian.h.

qToUnaligned()

template<typename T >

template< typename T > void qToUnaligned	(	const T	t,
		void *	ptr )

Since

4.5

Stores t to address ptr, which may be misaligned.

Use of this function avoids the undefined behavior that the C++ standard otherwise attributes to unaligned stores.

Definition at line 34 of file qendian.h.

Referenced by QNfcTagType4NdefFsm::getCommand(), and qt_to_latin1_internal().

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