[jcelerier]

> Forgive me, but can you be clearer than "mentioned"? Is the mangling required to contain template parameters for return types?

The mangling will contain template parameters, as you can have:

foo.hpp

    template<typename T>
    T f();

foo.cpp

    template<>
    int f<int>() { return 123; }
    template<>
    float f<float>() { return 123; }

bar.cpp

    std::cout << f<int>();

and the right function has to be found. demo: https://gcc.godbolt.org/z/rMjYoEzaK

[Dylan16807]

Sorry, I meant parameters that only are being returned, and not passed in.

So in the example several layers above, T uniquely identifies the function. I don't see any need to involve std::integral_constant<int, x> in the mangling.

[jcelerier]

long story short: https://stackoverflow.com/questions/30057635/why-is-the-retu...