Function Overloading for User-Defined Types
Learn about function overloading for user-defined types and the limitations of function overloading.
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Function overloading for user-defined types
Function overloading is useful with structs and classes. Furthermore, overload resolution ambiguities are much less frequent with user-defined types. Let’s overload the info()
function above for some of the types that we have defined in the structs chapter:
struct TimeOfDay {
int hour;
int minute;
}
void info(TimeOfDay time) {
writef("%02s:%02s", time.hour, time.minute);
}
This overload enables TimeOfDay
objects to be used with info()
. As a result, variables of user-defined types can be displayed in exactly the same way as fundamental types:
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