<QOverload>

Function Documentation

template <typename T> auto qConstOverload(T memberFunctionPointer)

Returns the memberFunctionPointer pointer to a constant member function:

     struct Foo {
         void overloadedFunction(int, const QString &);
         void overloadedFunction(int, const QString &) const;
     };
     auto ptr_1 = qConstOverload<int, const QString &>(&Foo::overloadedFunction);
     auto ptr_2 = qNonConstOverload<int, const QString &>(&Foo::overloadedFunction);

See also qOverload, qNonConstOverload, and Differences between String-Based and Functor-Based Connections.

template <typename T> auto qNonConstOverload(T memberFunctionPointer)

Returns the memberFunctionPointer pointer to a non-constant member function:

     struct Foo {
         void overloadedFunction(int, const QString &);
         void overloadedFunction(int, const QString &) const;
     };
     auto ptr_1 = qConstOverload<int, const QString &>(&Foo::overloadedFunction);
     auto ptr_2 = qNonConstOverload<int, const QString &>(&Foo::overloadedFunction);

See also qOverload, qConstOverload, and Differences between String-Based and Functor-Based Connections.

template <typename T> auto qOverload(T functionPointer)

Returns a pointer to an overloaded function. The template parameter is the list of the argument types of the function. functionPointer is the pointer to the (member) function:

 struct Foo {
     void overloadedFunction();
     void overloadedFunction(int, const QString &);
 };
 auto ptr_1 = qOverload<>(&Foo::overloadedFunction);
 auto ptr_2 = qOverload<int, const QString &>(&Foo::overloadedFunction);

If a member function is also const-overloaded qConstOverload and qNonConstOverload need to be used.

See also qConstOverload(), qNonConstOverload(), and Differences between String-Based and Functor-Based Connections.