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hana/example/list/partition.cpp
2014-06-05 22:47:39 -04:00

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1001 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/detail/constexpr.hpp>
#include <boost/hana/detail/static_assert.hpp>
#include <boost/hana/integral.hpp>
#include <boost/hana/list.hpp>
#include <boost/hana/trait.hpp>
using namespace boost::hana;
int main() {
//! [fusion]
BOOST_HANA_CONSTEXPR_LAMBDA auto odd = [](auto x) {
return x % int_<2> != int_<0>;
};
BOOST_HANA_STATIC_ASSERT(
partition(odd, list_c<int, 1, 2, 3, 4, 5, 6, 7>)
==
list(
list_c<int, 1, 3, 5, 7>,
list_c<int, 2, 4, 6>
)
);
//! [fusion]
//! [mpl]
BOOST_HANA_STATIC_ASSERT(
partition(trait::is_floating_point, list_t<void, int, float, char, double>)
==
list(
list_t<float, double>,
list_t<void, int, char>
)
);
//! [mpl]
}