Function main

example/functional/overload.cpp:25–31

auto f = hana::overload(on_int, on_string);

int main() {
    // prints "matched int: 1"
    BOOST_HANA_RUNTIME_CHECK(f(1) == 1);

    // prints "matched std::string: abcdef"
    BOOST_HANA_RUNTIME_CHECK(f("abcdef") == std::string{"abcdef"});
}