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35 lines
1.1 KiB
C++
35 lines
1.1 KiB
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/constexpr.hpp>
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#include <boost/hana/detail/static_assert.hpp>
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#include <boost/hana/functional.hpp>
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#include <boost/hana/integral.hpp>
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#include <boost/hana/list.hpp>
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#include <boost/hana/trait.hpp>
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#include <boost/hana/type.hpp>
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using namespace boost::hana;
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using namespace literals;
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int main() {
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//! [fusion]
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BOOST_HANA_CONSTEXPR_LAMBDA auto odd = [](auto x) {
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return x % 2_c != 0_c;
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};
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BOOST_HANA_STATIC_ASSERT(count(odd, list(1_c, 2_c, 3_c)) == 2_c);
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BOOST_HANA_STATIC_ASSERT(count(odd, list(1, 2, 3)) == 2);
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//! [fusion]
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//! [mpl]
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BOOST_HANA_CONSTEXPR_LAMBDA auto types = list_t<int, char, long, short, char, long, double, long>;
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BOOST_HANA_STATIC_ASSERT(count(trait::is_floating_point, types) == 1_c);
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BOOST_HANA_STATIC_ASSERT(count(_ == type<char>, types) == 2_c);
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BOOST_HANA_STATIC_ASSERT(count(_ == type<void>, types) == 0_c);
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//! [mpl]
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}
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