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hana/test/functor/adjust.cpp
2014-07-16 16:26:22 -04:00

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904 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/functor/adjust_mcd.hpp>
#include <boost/hana/functor/fmap_mcd.hpp>
#include <boost/hana/detail/constexpr.hpp>
#include <boost/hana/detail/minimal/functor.hpp>
#include <boost/hana/detail/static_assert.hpp>
using namespace boost::hana;
BOOST_HANA_CONSTEXPR_LAMBDA auto f = [](auto x) {
return x + 1;
};
template <typename mcd>
void test() {
constexpr auto functor = detail::minimal::functor<mcd>;
constexpr auto x = 1;
BOOST_HANA_STATIC_ASSERT(adjust([](auto) { return true; }, f, functor(x)) == functor(f(x)));
BOOST_HANA_STATIC_ASSERT(adjust([](auto) { return false; }, f, functor(x)) == functor(x));
}
int main() {
test<Functor::fmap_mcd>();
test<Functor::adjust_mcd>();
}