26 lines
814 B
C++
26 lines
814 B
C++
// Copyright Louis Dionne 2013-2017
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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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#include <boost/hana/assert.hpp>
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#include <boost/hana/equal.hpp>
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#include <boost/hana/greater.hpp>
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#include <boost/hana/integral_constant.hpp>
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#include <boost/hana/maximum.hpp>
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#include <boost/hana/tuple.hpp>
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namespace hana = boost::hana;
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int main() {
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// without a predicate
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BOOST_HANA_CONSTANT_CHECK(
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hana::maximum(hana::tuple_c<int, -1, 0, 2, -4, 6, 9>) == hana::int_c<9>
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);
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// with a predicate
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auto smallest = hana::maximum(hana::tuple_c<int, -1, 0, 2, -4, 6, 9>, [](auto x, auto y) {
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return x > y; // order is reversed!
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});
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BOOST_HANA_CONSTANT_CHECK(smallest == hana::int_c<-4>);
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}
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