Best alternative to a typedef for a function template?

Question

What I\'d like to do is something like this:

template 
DataType myFunc(DataType in)
{
   ...
}

typedef myFunc myFunc_i;

myFunc         


        

Answer 1

Try this:

typedef int (*myFunc_i_type)(int);
myFunc_i_type const myFunc_i = &myFunc;

This will trigger a compiler error if the signature of myFunc ever changes. Making it const also prohibits reassigning. Function pointers are also callable like any normal function: myFunc_i(5).

If you don't want a compiler error but rather have it update itself, use auto (again with const):

auto const myFunc_i = &myFunc;