/usr/include/c++/v1/experimental/regex is in libc++-dev 6.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | // -*- C++ -*-
//===----------------------------- regex ----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_EXPERIMENTAL_REGEX
#define _LIBCPP_EXPERIMENTAL_REGEX
/*
experimental/regex synopsis
// C++1z
namespace std {
namespace experimental {
inline namespace fundamentals_v1 {
namespace pmr {
template <class BidirectionalIterator>
using match_results =
std::match_results<BidirectionalIterator,
polymorphic_allocator<sub_match<BidirectionalIterator>>>;
typedef match_results<const char*> cmatch;
typedef match_results<const wchar_t*> wcmatch;
typedef match_results<string::const_iterator> smatch;
typedef match_results<wstring::const_iterator> wsmatch;
} // namespace pmr
} // namespace fundamentals_v1
} // namespace experimental
} // namespace std
*/
#include <experimental/__config>
#include <regex>
#include <experimental/string>
#include <experimental/memory_resource>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_LFTS_PMR
template <class _BiDirIter>
using match_results =
_VSTD::match_results<_BiDirIter,
polymorphic_allocator<_VSTD::sub_match<_BiDirIter>>>;
typedef match_results<const char*> cmatch;
typedef match_results<const wchar_t*> wcmatch;
typedef match_results<_VSTD_LFTS_PMR::string::const_iterator> smatch;
typedef match_results<_VSTD_LFTS_PMR::wstring::const_iterator> wsmatch;
_LIBCPP_END_NAMESPACE_LFTS_PMR
#endif /* _LIBCPP_EXPERIMENTAL_REGEX */
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