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31 lines
813 B
C++
31 lines
813 B
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/integral.hpp>
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#include <boost/hana/list/instance.hpp>
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#include <boost/hana/range.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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//! [main]
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BOOST_HANA_CONSTEXPR_LAMBDA auto negative = [](auto x) {
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return x < int_<0>;
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};
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BOOST_HANA_STATIC_ASSERT(
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drop_while(negative, range(int_<-3>, int_<6>)) == range(int_<0>, int_<6>)
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);
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BOOST_HANA_STATIC_ASSERT(
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drop_while(negative, list(1_c, -2_c, 4_c, 5_c)) == list(1_c, -2_c, 4_c, 5_c)
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);
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//! [main]
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}
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