f4c1258d56
Some embedded platforms do not wish to support the C library functionality for handling wchar_t because they have no use for it. It makes sense for libc++ to work properly on those platforms, so this commit adds a carve-out of functionality for wchar_t. Unfortunately, unlike some other carve-outs (e.g. random device), this patch touches several parts of the library. However, despite the wide impact of this patch, I still think it is important to support this configuration since it makes it much simpler to port libc++ to some embedded platforms. Differential Revision: https://reviews.llvm.org/D111265
64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
// -*- C++ -*-
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//===----------------------------- regex ----------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_EXPERIMENTAL_REGEX
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#define _LIBCPP_EXPERIMENTAL_REGEX
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/*
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experimental/regex synopsis
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// C++1z
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namespace std {
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namespace experimental {
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inline namespace fundamentals_v1 {
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namespace pmr {
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template <class BidirectionalIterator>
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using match_results =
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std::match_results<BidirectionalIterator,
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polymorphic_allocator<sub_match<BidirectionalIterator>>>;
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typedef match_results<const char*> cmatch;
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typedef match_results<const wchar_t*> wcmatch;
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typedef match_results<string::const_iterator> smatch;
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typedef match_results<wstring::const_iterator> wsmatch;
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} // namespace pmr
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} // namespace fundamentals_v1
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} // namespace experimental
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} // namespace std
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*/
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#include <experimental/__config>
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#include <regex>
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#include <experimental/string>
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#include <experimental/memory_resource>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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#pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_LFTS_PMR
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template <class _BiDirIter>
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using match_results =
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_VSTD::match_results<_BiDirIter,
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polymorphic_allocator<_VSTD::sub_match<_BiDirIter>>>;
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typedef match_results<const char*> cmatch;
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typedef match_results<_VSTD_LFTS_PMR::string::const_iterator> smatch;
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#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
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typedef match_results<const wchar_t*> wcmatch;
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typedef match_results<_VSTD_LFTS_PMR::wstring::const_iterator> wsmatch;
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#endif
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_LIBCPP_END_NAMESPACE_LFTS_PMR
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#endif /* _LIBCPP_EXPERIMENTAL_REGEX */
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