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- // Copyright Louis Dionne 2013-2017
- // Distributed under the Boost Software License, Version 1.0.
- // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
- #include <boost/hana/assert.hpp>
- #include <boost/hana/drop_front_exactly.hpp>
- #include <boost/hana/equal.hpp>
- #include <boost/hana/integral_constant.hpp>
- #include <boost/hana/string.hpp>
- namespace hana = boost::hana;
- int main() {
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::drop_front_exactly(BOOST_HANA_STRING("a")),
- BOOST_HANA_STRING("")
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::drop_front_exactly(BOOST_HANA_STRING("ab")),
- BOOST_HANA_STRING("b")
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::drop_front_exactly(BOOST_HANA_STRING("abc")),
- BOOST_HANA_STRING("bc")
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::drop_front_exactly(BOOST_HANA_STRING("abcdefghijk")),
- BOOST_HANA_STRING("bcdefghijk")
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::drop_front_exactly(BOOST_HANA_STRING("abc"), hana::size_c<2>),
- BOOST_HANA_STRING("c")
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::drop_front_exactly(BOOST_HANA_STRING("abcdefghijk"), hana::size_c<3>),
- BOOST_HANA_STRING("defghijk")
- ));
- }
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