- Qt 6.9
- Qt Core
- C++ Classes
- QSharedData
- Qt 6.9.2 Reference Documentation

# QSharedData Class

The QSharedData class is a base class for shared data objects. More...

Header: | `#include <QSharedData>`
CMake: | `find_package(Qt6 REQUIRED COMPONENTS Core)` `target_link_libraries(mytarget PRIVATE Qt6::Core)`
qmake: | `QT += core`

- List of all members, including inherited members

Note: All functions in this class are reentrant.

## Public Functions

| QSharedData()
| QSharedData(const QSharedData &)

## Detailed Description

QSharedData is designed to be used with QSharedDataPointer or QExplicitlySharedDataPointer to implement custom implicitly shared or explicitly shared classes. QSharedData provides thread-safe reference counting.

See QSharedDataPointer and QExplicitlySharedDataPointer for details.

## Member Function Documentation

### `[noexcept]` QSharedData::QSharedData()

Constructs a QSharedData object with a reference count of 0.

### `[noexcept]` QSharedData::QSharedData(const QSharedData &)

Constructs a QSharedData object with reference count 0. The parameter is ignored.