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hana/example/group.cpp
2014-08-25 12:33:49 -04:00

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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/detail/assert.hpp>
#include <boost/hana/foreign.hpp>
#include <boost/hana/integral.hpp>
using namespace boost::hana;
int main() {
//! [minus]
BOOST_HANA_CONSTANT_ASSERT(minus(int_<3>, int_<5>) == int_<-2>);
BOOST_HANA_CONSTEXPR_ASSERT(minus(1, 2) == -1);
//! [minus]
//! [negate]
BOOST_HANA_CONSTANT_ASSERT(negate(int_<3>) == int_<-3>);
BOOST_HANA_CONSTEXPR_ASSERT(negate(2) == -2);
//! [negate]
}