QScopedArrayPointer 类

template <typename T, typename Cleanup> class QScopedArrayPointer

QScopedArrayPointer 类存储动态分配对象数组的指针，并在销毁时删除它。更多...

头：	#include <QScopedArrayPointer>
qmake:	QT += core
Since:	Qt 4.6
继承：	QScopedPointer

该类在 Qt 4.6 引入。

所有成员列表，包括继承成员

注意： 此类的所有函数可重入 .

公共函数

	QScopedArrayPointer (D * p )
	QScopedArrayPointer ()
void	swap (QScopedArrayPointer<T, Cleanup> & other )
T &	operator[] (int i )
const T &	operator[] (int i ) const

详细描述

A QScopedArrayPointer is a QScopedPointer that defaults to deleting the object it is pointing to with the delete[] operator. It also features operator[] for convenience, so we can write:

void foo()
{
    QScopedArrayPointer<int> i(new int[10]);
    i[2] = 42;
    ...
    return; // our integer array is now deleted using delete[]
}

成员函数文档编制

template <typename D, if_same_type<D>> QScopedArrayPointer:: QScopedArrayPointer ( D * p )

Constructs a QScopedArrayPointer and stores the array of objects pointed to by p .

QScopedArrayPointer:: QScopedArrayPointer ()

Constructs a QScopedArrayPointer instance.

void QScopedArrayPointer:: swap ( QScopedArrayPointer < T , Cleanup > & other )

Swap this pointer with other .

T &QScopedArrayPointer:: operator[] ( int i )

Provides access to entry i of the scoped pointer's array of objects.

If the contained pointer is nullptr , behavior is undefined.

另请参阅 isNull ().

const T &QScopedArrayPointer:: operator[] ( int i ) const

Provides access to entry i of the scoped pointer's array of objects.

If the contained pointer is nullptr behavior is undefined.

另请参阅 isNull ().