32 lines
794 B
C++
32 lines
794 B
C++
// Copyright Louis Dionne 2013-2017
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
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#include <boost/hana/assert.hpp>
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#include <boost/hana/functional/overload.hpp>
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#include <iostream>
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#include <string>
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namespace hana = boost::hana;
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auto on_string = [](std::string const& s) {
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std::cout << "matched std::string: " << s << std::endl;
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return s;
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};
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auto on_int = [](int i) {
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std::cout << "matched int: " << i << std::endl;
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return i;
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};
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auto f = hana::overload(on_int, on_string);
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int main() {
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// prints "matched int: 1"
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BOOST_HANA_RUNTIME_CHECK(f(1) == 1);
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// prints "matched std::string: abcdef"
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BOOST_HANA_RUNTIME_CHECK(f("abcdef") == std::string{"abcdef"});
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}
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