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hana/example/functional/on/multiply.cpp
2014-12-06 16:30:16 -05:00

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627 B
C++

/*
@copyright Louis Dionne 2014
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
*/
#include <boost/hana/assert.hpp>
#include <boost/hana/detail/constexpr.hpp>
#include <boost/hana/functional.hpp>
using namespace boost::hana;
int main() {
//! [main]
BOOST_HANA_CONSTEXPR_LAMBDA auto increment = [](auto x) {
return x + 1;
};
BOOST_HANA_CONSTEXPR_LAMBDA auto multiply = [](auto x, auto y) {
return x * y;
};
BOOST_HANA_CONSTEXPR_CHECK(on(multiply, increment)(2, 4) == 3 * 5);
//! [main]
}