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hana/test/range/iterable.cpp
2014-05-20 18:50:30 -04:00

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978 B
C++

/*
* Copyright Louis Dionne 2014
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE.md or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*/
#include <boost/hana/range.hpp>
#include <boost/hana/detail/static_assert.hpp>
#include <boost/hana/integral.hpp>
using namespace boost::hana;
int main() {
BOOST_HANA_STATIC_ASSERT(is_empty(range(int_<0>, int_<0>)));
BOOST_HANA_STATIC_ASSERT(!is_empty(range(int_<0>, int_<1>)));
BOOST_HANA_STATIC_ASSERT(!is_empty(range(int_<0>, int_<2>)));
BOOST_HANA_STATIC_ASSERT(head(range(int_<0>, int_<1>)) == int_<0>);
BOOST_HANA_STATIC_ASSERT(head(range(int_<0>, int_<2>)) == int_<0>);
BOOST_HANA_STATIC_ASSERT(tail(range(int_<0>, int_<1>)) == range(int_<1>, int_<1>));
BOOST_HANA_STATIC_ASSERT(tail(range(int_<0>, int_<2>)) == range(int_<1>, int_<2>));
BOOST_HANA_STATIC_ASSERT(tail(range(int_<0>, int_<3>)) == range(int_<1>, int_<3>));
}