forked from boostorg/static_string
118 lines
3.7 KiB
C++
118 lines
3.7 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/static_string
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//
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#ifndef BOOST_STATIC_STRING_CONFIG_HPP
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#define BOOST_STATIC_STRING_CONFIG_HPP
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// Are we dependent on Boost?
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// #define BOOST_STATIC_STRING_STANDALONE
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// Can we have deduction guides?
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#ifdef __cpp_deduction_guides
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#define BOOST_STATIC_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_STATIC_STRING_NODISCARD [[nodiscard]]
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#else
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#define BOOST_STATIC_STRING_NODISCARD
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#endif
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#else
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#define BOOST_STATIC_STRING_NODISCARD
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#endif
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//#undef __cplusplus
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//#define __cplusplus 201703L
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#if __cplusplus > 201703L
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#define BOOST_STATIC_STRING_CPP20_CONSTEXPR constexpr
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#define BOOST_STATIC_STRING_CPP17_CONSTEXPR constexpr
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#define BOOST_STATIC_STRING_CPP14_CONSTEXPR constexpr
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#define BOOST_STATIC_STRING_CPP11_CONSTEXPR constexpr
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#define BOOST_STATIC_STRING_CPP20_CONSTEXPR_USED
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#define BOOST_STATIC_STRING_CPP17_CONSTEXPR_USED
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#define BOOST_STATIC_STRING_CPP14_CONSTEXPR_USED
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#define BOOST_STATIC_STRING_CPP11_CONSTEXPR_USED
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#define BOOST_STATIC_STRING_ALLOW_UNINIT_MEM
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#elif __cplusplus >= 201703L
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#define BOOST_STATIC_STRING_CPP20_CONSTEXPR
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#define BOOST_STATIC_STRING_CPP17_CONSTEXPR constexpr
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#define BOOST_STATIC_STRING_CPP14_CONSTEXPR constexpr
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#define BOOST_STATIC_STRING_CPP11_CONSTEXPR constexpr
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#define BOOST_STATIC_STRING_CPP17_CONSTEXPR_USED
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#define BOOST_STATIC_STRING_CPP14_CONSTEXPR_USED
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#define BOOST_STATIC_STRING_CPP11_CONSTEXPR_USED
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#elif __cplusplus >= 201402L
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#define BOOST_STATIC_STRING_CPP20_CONSTEXPR
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#define BOOST_STATIC_STRING_CPP17_CONSTEXPR
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#define BOOST_STATIC_STRING_CPP14_CONSTEXPR constexpr
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#define BOOST_STATIC_STRING_CPP11_CONSTEXPR constexpr
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#define BOOST_STATIC_STRING_CPP14_CONSTEXPR_USED
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#define BOOST_STATIC_STRING_CPP11_CONSTEXPR_USED
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#else
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#define BOOST_STATIC_STRING_CPP20_CONSTEXPR
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#define BOOST_STATIC_STRING_CPP17_CONSTEXPR
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#define BOOST_STATIC_STRING_CPP14_CONSTEXPR
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#define BOOST_STATIC_STRING_CPP11_CONSTEXPR constexpr
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#define BOOST_STATIC_STRING_CPP11_CONSTEXPR_USED
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#endif
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#ifndef BOOST_STATIC_STRING_STANDALONE
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#include <boost/utility/string_view.hpp>
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#include <boost/container_hash/hash.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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#ifndef BOOST_STATIC_STRING_STANDALONE
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#ifndef BOOST_STATIC_STRING_THROW
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#define BOOST_STATIC_STRING_THROW(ex) BOOST_THROW_EXCEPTION(ex)
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#endif
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#ifndef BOOST_STATIC_STRING_STATIC_ASSERT
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#define BOOST_STATIC_STRING_STATIC_ASSERT(cond, msg) BOOST_STATIC_ASSERT_MSG(cond, msg)
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#endif
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#ifndef BOOST_STATIC_STRING_ASSERT
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#define BOOST_STATIC_STRING_ASSERT(cond) BOOST_ASSERT(cond)
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#endif
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#else
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#ifndef BOOST_STATIC_STRING_THROW
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#define BOOST_STATIC_STRING_THROW(ex) throw ex
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#endif
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#ifndef BOOST_STATIC_STRING_STATIC_ASSERT
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#define BOOST_STATIC_STRING_STATIC_ASSERT(cond, msg) static_assert(cond, msg)
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#endif
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#ifndef BOOST_STATIC_STRING_ASSERT
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#define BOOST_STATIC_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 static_string {
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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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#ifndef BOOST_STATIC_STRING_STANDALONE
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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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} // static_string
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} // boost
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#endif
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