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c++templatestypesreturnoverloading

Could C++ template function overload on return parameter?

With same template declaration, is it possible to differ two functions with same name, same param list, but different return type?

template <class T>
int f()...

template <class T>
short f()...

Or, need some special code to achieve this?

Thanks.

Solution

  • You can indeed have function templates with same name, same parameter types, and same return type (but you cannot for regular functions).

    template <class T>
int f() {/*..*/}

template <class T>
short f() {/*..*/}

    But then their usage is not really easy/fine:

    auto i = static_cast<int(*)()>(&f<float>)(); // Call int f<float>
auto s = static_cast<short(*)()>(&f<float>)(); // Call short f<float>