Overload resolution

Overload resolution

In order to compile a function call, the compiler must first perform name lookup, which, for functions, may involve argument-dependent lookup, and for function templates may be followed by template argument deduction. If these steps produce more than one candidate function, then overload resolution is performed to select the function that will actually be called.

In general, the candidate function whose parameters match the arguments most closely is the one that is called.

For other contexts where overloaded function names can appear, see taking the a