forked from boostorg/static_string
89 lines
2.3 KiB
C++
89 lines
2.3 KiB
C++
//
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// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
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// Copyright (c) 2019 Krystian Stasiowski (sdkrystian at gmail dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// Official repository: https://github.com/boostorg/fixed_string
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//
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#ifndef BOOST_FIXED_STRING_CONFIG_HPP
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#define BOOST_FIXED_STRING_CONFIG_HPP
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// Are we dependent on Boost?
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#define BOOST_FIXED_STRING_USE_BOOST
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// Can we have deduction guides?
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#ifdef __cpp_deduction_guides
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#define BOOST_FIXED_STRING_USE_DEDUCT
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#endif
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// Can we use [[nodiscard]]?
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#ifdef __has_attribute
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#if __has_attribute(nodiscard)
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#define BOOST_FIXED_STRING_NODISCARD [[nodiscard]]
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#else
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#define BOOST_FIXED_STRING_NODISCARD
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#endif
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#else
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#define BOOST_FIXED_STRING_NODISCARD
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#endif
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#ifdef BOOST_FIXED_STRING_USE_BOOST
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#include <boost/utility/string_view.hpp>
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#include <boost/assert.hpp>
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#include <boost/static_assert.hpp>
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#include <boost/throw_exception.hpp>
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#else
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#include <cassert>
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#include <string_view>
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#endif
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// Boost and non-Boost versions of utilities
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#ifdef BOOST_FIXED_STRING_USE_BOOST
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#ifndef BOOST_FIXED_STRING_THROW
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#define BOOST_FIXED_STRING_THROW(ex) BOOST_THROW_EXCEPTION(ex)
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#endif
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#ifndef BOOST_FIXED_STRING_STATIC_ASSERT
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#define BOOST_FIXED_STRING_STATIC_ASSERT(cond, msg) BOOST_STATIC_ASSERT_MSG(cond, msg)
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#endif
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#ifndef BOOST_FIXED_STRING_ASSERT
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#define BOOST_FIXED_STRING_ASSERT(cond) BOOST_ASSERT(cond)
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#endif
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#else
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#ifndef BOOST_FIXED_STRING_THROW
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#define BOOST_FIXED_STRING_THROW(ex) throw ex
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#endif
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#ifndef BOOST_FIXED_STRING_STATIC_ASSERT
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#define BOOST_FIXED_STRING_STATIC_ASSERT(cond, msg) static_assert(cond, msg)
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#endif
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#ifndef BOOST_FIXED_STRING_ASSERT
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#define BOOST_FIXED_STRING_ASSERT(cond) assert(cond)
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#endif
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#endif
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namespace boost {
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namespace fixed_string {
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/// The type of `string_view` used by the library
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using string_view =
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#ifdef BOOST_FIXED_STRING_USE_BOOST
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boost::string_view;
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#else
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std::string_view;
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#endif
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/// The type of `basic_string_view` used by the library
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template<typename CharT, typename Traits>
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using basic_string_view =
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#ifdef BOOST_FIXED_STRING_USE_BOOST
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boost::basic_string_view<CharT, Traits>;
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#else
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std::basic_string_view<CharT, Traits>;
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#endif
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} // fixed_string
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} // boost
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#endif
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