QScopedArrayPointer Class

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

All functions in this class are reentrant.

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Publié le 27 décembre 2024 - Mis à jour le 27 décembre 2024

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QScopedArrayPointer Class▲

Header: QScopedArrayPointer
CMake:

find_package(Qt6 REQUIRED COMPONENTS Core)

target_link_libraries(mytarget PRIVATE Qt6::Core)
qmake: QT += core
Inherits: QScopedPointer
Group: QScopedArrayPointer is part of misc

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:

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void foo()
{
    QScopedArrayPointer&lt;int&gt; 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] QScopedArrayPointer::QScopedArrayPointer(D *p)▲

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

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.

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