110 lines
2.4 KiB
C++
110 lines
2.4 KiB
C++
// Copyright 2015 MongoDB Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include <bsoncxx/config/prelude.hpp>
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#if defined(BSONCXX_POLY_USE_MNMLSTC)
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#if defined(MONGO_CXX_DRIVER_COMPILING) || defined(BSONCXX_POLY_USE_SYSTEM_MNMLSTC)
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#include <core/string.hpp>
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#else
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#include <bsoncxx/third_party/mnmlstc/core/string.hpp>
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#endif
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namespace bsoncxx {
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BSONCXX_INLINE_NAMESPACE_BEGIN
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namespace stdx {
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using ::core::basic_string_view;
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using ::core::string_view;
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} // namespace stdx
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BSONCXX_INLINE_NAMESPACE_END
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} // namespace bsoncxx
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#elif defined(BSONCXX_POLY_USE_BOOST)
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#include <boost/version.hpp>
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#if BOOST_VERSION >= 106100
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#include <boost/utility/string_view.hpp>
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namespace bsoncxx {
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BSONCXX_INLINE_NAMESPACE_BEGIN
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namespace stdx {
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using ::boost::basic_string_view;
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using ::boost::string_view;
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} // namespace stdx
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BSONCXX_INLINE_NAMESPACE_END
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} // namespace bsoncxx
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#else
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#include <boost/utility/string_ref.hpp>
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namespace bsoncxx {
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BSONCXX_INLINE_NAMESPACE_BEGIN
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namespace stdx {
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template <typename charT, typename traits = std::char_traits<charT>>
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using basic_string_view = ::boost::basic_string_ref<charT, traits>;
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using string_view = ::boost::string_ref;
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} // namespace stdx
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BSONCXX_INLINE_NAMESPACE_END
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} // namespace bsoncxx
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#endif
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#elif defined(BSONCXX_POLY_USE_STD_EXPERIMENTAL)
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#include <experimental/string_view>
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namespace bsoncxx {
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BSONCXX_INLINE_NAMESPACE_BEGIN
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namespace stdx {
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using ::std::experimental::basic_string_view;
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using ::std::experimental::string_view;
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} // namespace stdx
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BSONCXX_INLINE_NAMESPACE_END
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} // namespace bsoncxx
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#elif defined(BSONCXX_POLY_USE_STD)
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#include <string_view>
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namespace bsoncxx {
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BSONCXX_INLINE_NAMESPACE_BEGIN
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namespace stdx {
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using ::std::basic_string_view;
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using ::std::string_view;
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} // namespace stdx
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BSONCXX_INLINE_NAMESPACE_END
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} // namespace bsoncxx
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#else
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#error "Cannot find a valid polyfill for string_view"
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#endif
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#include <bsoncxx/config/postlude.hpp>
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