58 lines
1.8 KiB
C++
58 lines
1.8 KiB
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/core/make.hpp>
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#include <boost/hana/equal.hpp>
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#include <boost/hana/find.hpp>
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#include <boost/hana/integral_constant.hpp>
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#include <boost/hana/optional.hpp>
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#include <boost/hana/range.hpp>
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#include <support/cnumeric.hpp>
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namespace hana = boost::hana;
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int main() {
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::find(hana::make_range(hana::int_c<0>, hana::int_c<0>), cnumeric<int, 0>),
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hana::nothing
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::find(hana::make_range(hana::int_c<0>, hana::int_c<1>), cnumeric<int, 0>),
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hana::just(hana::int_c<0>)
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::find(hana::make_range(hana::int_c<0>, hana::int_c<10>), cnumeric<int, 3>),
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hana::just(hana::int_c<3>)
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::find(hana::make_range(hana::int_c<0>, hana::int_c<10>), cnumeric<int, 9>),
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hana::just(hana::int_c<9>)
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::find(hana::make_range(hana::int_c<-10>, hana::int_c<10>), cnumeric<int, -10>),
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hana::just(hana::int_c<-10>)
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::find(hana::make_range(hana::int_c<-10>, hana::int_c<10>), cnumeric<int, -5>),
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hana::just(hana::int_c<-5>)
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::find(hana::make_range(hana::int_c<-10>, hana::int_c<0>), cnumeric<int, 3>),
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hana::nothing
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::find(hana::make_range(hana::int_c<0>, hana::int_c<10>), cnumeric<int, 15>),
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hana::nothing
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));
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}
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