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QScopedArrayPointer Class

template <typename T, typename Cleanup = QScopedPointerArrayDeleter<T>> class QScopedArrayPointer

The QScopedArrayPointer class stores a pointer to a dynamically allocated array of objects, and deletes it upon destruction. More...

Header: #include <QScopedArrayPointer>
CMake: find_package(Qt6 REQUIRED COMPONENTS Core)
target_link_libraries(mytarget PRIVATE Qt6::Core)
qmake: QT += core
Inherits: QScopedPointer

Note: All functions in this class are reentrant.

Public Functions

QScopedArrayPointer()
QScopedArrayPointer(D *p)
T &operator[](qsizetype i)
const T &operator[](qsizetype i) const

Detailed Description

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[]
}

Member Function Documentation

QScopedArrayPointer::QScopedArrayPointer()

Constructs a QScopedArrayPointer instance.

[explicit] template <typename D, QScopedArrayPointer<T, Cleanup>::if_same_type<D> = true> QScopedArrayPointer::QScopedArrayPointer(D *p)

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

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

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

If the contained pointer is nullptr, behavior is undefined.

Note: In Qt versions prior to 6.5, i was of type int, not qsizetype, possibly causing truncation on 64-bit platforms.

See also isNull().

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

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

If the contained pointer is nullptr behavior is undefined.

Note: In Qt versions prior to 6.5, i was of type int, not qsizetype, possibly causing truncation on 64-bit platforms.

See also isNull().

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