QVectorData Struct Reference

#include <qvector.h>

Inheritance diagram for QVectorData:

Static Public Functions
static QVectorData *	allocate (int size, int alignment)
static void	free (QVectorData *data, int alignment)
static int	grow (int sizeofTypedData, int size, int sizeofT, bool excessive)
static QVectorData *	malloc (int sizeofTypedData, int size, int sizeofT, QVectorData *init)
static QVectorData *	reallocate (QVectorData *old, int newsize, int oldsize, int alignment)

Public Variables
int	alloc
uint	capacity: 1
QBasicAtomicInt	ref
uint	reserved: 30
uint	sharable: 1
int	size

Static Public Variables
static QVectorData	shared_null = { Q_BASIC_ATOMIC_INITIALIZER(1), 0, 0, true, false, 0 }

Detailed Description

Definition at line 66 of file qvector.h.

Functions

allocate()

QVectorData * QVectorData::allocate ( int  size, int  alignment  )

static

Definition at line 65 of file qvector.cpp.

Referenced by QVector< QPoint >::malloc().

{
    return static_cast<QVectorData *>(alignment > alignmentThreshold() ? qMallocAligned(size, alignment) : qMalloc(size));
}

free()

void QVectorData::free ( QVectorData *  data, int  alignment  )

static

Definition at line 77 of file qvector.cpp.

Referenced by QVectorTypedData< T >::free().

{
    if (alignment > alignmentThreshold())
        qFreeAligned(x);
    else
        qFree(x);
}

grow()

int QVectorData::grow ( int  sizeofTypedData, int  size, int  sizeofT, bool  excessive  )

static

Definition at line 85 of file qvector.cpp.

Referenced by QVector< QPoint >::append(), QVector< QPoint >::insert(), and QVector< QPoint >::resize().

{
    if (excessive)
        return size + size / 2;
    return qAllocMore(size * sizeofT, sizeofTypedData - sizeofT) / sizeofT;
}

malloc()

QVectorData * QVectorData::malloc ( int  sizeofTypedData, int  size, int  sizeofT, QVectorData *  init  )

static

Definition at line 57 of file qvector.cpp.

Referenced by QVector< QPoint >::QVector(), and QVector< QPoint >::realloc().

{
    QVectorData* p = (QVectorData *)qMalloc(sizeofTypedData + (size - 1) * sizeofT);
    Q_CHECK_PTR(p);
    ::memcpy(p, init, sizeofTypedData + (qMin(size, init->alloc) - 1) * sizeofT);
    return p;
}

reallocate()

QVectorData * QVectorData::reallocate ( QVectorData *  old, int  newsize, int  oldsize, int  alignment  )

static

Definition at line 70 of file qvector.cpp.

Referenced by QVector< QPoint >::realloc().

{
    if (alignment > alignmentThreshold())
        return static_cast<QVectorData *>(qReallocAligned(x, newsize, oldsize, alignment));
    return static_cast<QVectorData *>(qRealloc(x, newsize));
}

Properties

alloc

int QVectorData::alloc

Definition at line 69 of file qvector.h.

Referenced by malloc().

capacity

uint QVectorData::capacity

Definition at line 78 of file qvector.h.

ref

QBasicAtomicInt QVectorData::ref

Definition at line 68 of file qvector.h.

Referenced by QVector< QPoint >::operator=().

reserved

uint QVectorData::reserved

Definition at line 79 of file qvector.h.

sharable

uint QVectorData::sharable

Definition at line 77 of file qvector.h.

Referenced by QVector< QPoint >::setSharable().

shared_null

QVectorData QVectorData::shared_null = { Q_BASIC_ATOMIC_INITIALIZER(1), 0, 0, true, false, 0 }

static

Definition at line 82 of file qvector.h.

Referenced by alignmentThreshold().

size

int QVectorData::size

Definition at line 70 of file qvector.h.

Referenced by QVector< QPoint >::at(), QVector< QPoint >::fill(), QVector< QPoint >::indexOf(), QVector< QPoint >::insert(), QVector< QPoint >::mid(), QVector< QPoint >::operator+=(), QVector< QPoint >::operator==(), QVector< QPoint >::operator[](), QVector< QPoint >::QVector(), QVector< QPoint >::realloc(), QRegion::rects(), QVector< QPoint >::remove(), QVector< QPoint >::replace(), QVector< QPoint >::resize(), QVector< QPoint >::toList(), QVector< QPoint >::toStdVector(), and QList< QPostEvent >::toVector().

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The documentation for this struct was generated from the following files:

• /src/corelib/tools/qvector.h
• /src/corelib/tools/qvector.cpp