19 lines
672 B
C++
19 lines
672 B
C++
// Copyright 2020 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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#include <boost/mp11.hpp>
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#include <boost/core/lightweight_test_trait.hpp>
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using namespace boost::mp11;
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template<class L, template<class...> class P> using is_sorted = mp_none_of<mp_pairwise_fold_q<L, mp_bind<P, _2, _1>>, mp_to_bool>;
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int main()
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{
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BOOST_TEST_TRAIT_TRUE((is_sorted<mp_list<mp_int<0>, mp_int<0>, mp_int<1>, mp_int<3>, mp_int<3>, mp_int<7>>, mp_less>));
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BOOST_TEST_TRAIT_FALSE((is_sorted<mp_list<mp_int<0>, mp_int<0>, mp_int<1>, mp_int<3>, mp_int<3>, mp_int<2>>, mp_less>));
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return boost::report_errors();
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}
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