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30 lines
739 B
C++
30 lines
739 B
C++
/*
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@copyright Louis Dionne 2014
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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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*/
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#include <boost/hana/detail/assert.hpp>
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#include <boost/hana/detail/constexpr.hpp>
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#include <boost/hana/functional.hpp>
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using namespace boost::hana;
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int main() {
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//! [main]
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BOOST_HANA_CONSTEXPR_LAMBDA auto plus = [](auto x, auto y) {
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return x + y;
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};
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BOOST_HANA_CONSTEXPR_LAMBDA auto to_int = [](char c) {
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return static_cast<int>(c) - 48;
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};
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BOOST_HANA_CONSTEXPR_LAMBDA auto inc = [](auto x) {
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return x + 1;
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};
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BOOST_HANA_CONSTEXPR_ASSERT(lockstep(plus, to_int, inc)('3', 4) == 3 + 5);
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//! [main]
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}
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