110 lines
3.1 KiB
C++
110 lines
3.1 KiB
C++
/*
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Copyright (c) 2016-2018, Arvid Norberg
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TORRENT_STRING_VIEW_HPP_INCLUDED
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#define TORRENT_STRING_VIEW_HPP_INCLUDED
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#include <boost/version.hpp>
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#include "libtorrent/aux_/disable_warnings_push.hpp"
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// TODO: replace this by the standard string_view in C++17
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#if BOOST_VERSION < 106100
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#include <boost/utility/string_ref.hpp>
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#include <cstring> // for strchr
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namespace libtorrent {
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using string_view = boost::string_ref;
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using wstring_view = boost::wstring_ref;
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// internal
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inline string_view::size_type find_first_of(string_view const v, char const c
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, string_view::size_type pos)
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{
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while (pos < v.size())
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{
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if (v[pos] == c) return pos;
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++pos;
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}
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return string_view::npos;
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}
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// internal
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inline string_view::size_type find_first_of(string_view const v, char const* c
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, string_view::size_type pos)
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{
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while (pos < v.size())
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{
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if (std::strchr(c, v[pos]) != nullptr) return pos;
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++pos;
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}
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return string_view::npos;
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}
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}
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#else
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#include <boost/utility/string_view.hpp>
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namespace libtorrent {
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using string_view = boost::string_view;
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using wstring_view = boost::wstring_view;
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// internal
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inline string_view::size_type find_first_of(string_view const v, char const c
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, string_view::size_type pos)
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{
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return v.find_first_of(c, pos);
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}
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// internal
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inline string_view::size_type find_first_of(string_view const v, char const* c
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, string_view::size_type pos)
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{
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return v.find_first_of(c, pos);
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}
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}
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#endif
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namespace libtorrent {
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inline namespace literals {
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constexpr string_view operator "" _sv(char const* str, std::size_t len)
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{ return string_view(str, len); }
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}
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}
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#include "libtorrent/aux_/disable_warnings_pop.hpp"
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#endif
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