- Qt 5.15
- Qt Core
- C++ Classes
- QGlobalStatic
- Qt 5.15.18 Reference Documentation

# Obsolete Members for QGlobalStatic

The following members of class QGlobalStatic are obsolete. They are provided to keep old source code working. We strongly advise against using them in new code.

## Public Functions

`(obsolete)` Type * | operator()()

## Member Function Documentation

### Type *QGlobalStatic::operator()()

This function is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.

This function returns the address of the contents of this global static. If the contents have not yet been created, they will be created thread-safely by this function. If the contents have already been destroyed, this function will return a null pointer.

This function is equivalent to operator Type *(). It is provided for compatibility with the private Q_GLOBAL_STATIC implementation that existed in Qt 4.x and 5.0. New code should avoid using it and should instead treat the object as a smart pointer.