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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/core/to.hpp>
- #include <boost/hana/string.hpp>
- #include <cstring>
- namespace hana = boost::hana;
- static_assert(hana::is_convertible<hana::string_tag, char const*>{}, "");
- static_assert(!hana::is_embedded<hana::string_tag, char const*>{}, "");
- int main() {
- BOOST_HANA_RUNTIME_CHECK(std::strcmp(
- hana::to<char const*>(BOOST_HANA_STRING("")),
- ""
- ) == 0);
- BOOST_HANA_RUNTIME_CHECK(std::strcmp(
- hana::to<char const*>(BOOST_HANA_STRING("a")),
- "a"
- ) == 0);
- BOOST_HANA_RUNTIME_CHECK(std::strcmp(
- hana::to<char const*>(BOOST_HANA_STRING("ab")),
- "ab"
- ) == 0);
- BOOST_HANA_RUNTIME_CHECK(std::strcmp(
- hana::to<char const*>(BOOST_HANA_STRING("abc")),
- "abc"
- ) == 0);
- BOOST_HANA_RUNTIME_CHECK(std::strcmp(
- hana::to<char const*>(BOOST_HANA_STRING("abcd")),
- "abcd"
- ) == 0);
- // make sure we can turn a non-constexpr hana::string
- // into a constexpr char const*
- auto str = BOOST_HANA_STRING("abcdef");
- constexpr char const* c_str = hana::to<char const*>(str);
- (void)c_str;
- }
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