remove signal generator
This commit is contained in:
@@ -0,0 +1,656 @@
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// Filesystem directory utilities -*- C++ -*-
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// Copyright (C) 2014-2025 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/** @file include/bits/fs_dir.h
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* This is an internal header file, included by other library headers.
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* Do not attempt to use it directly. @headername{filesystem}
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*/
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#ifndef _GLIBCXX_FS_DIR_H
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#define _GLIBCXX_FS_DIR_H 1
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#if __cplusplus >= 201703L
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# include <typeinfo>
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# include <ext/concurrence.h>
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# include <bits/unique_ptr.h>
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# include <bits/shared_ptr.h>
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#if __cplusplus >= 202002L
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# include <compare> // std::strong_ordering
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# include <bits/iterator_concepts.h> // std::default_sentinel_t
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# include <bits/ranges_base.h> // enable_view, enable_borrowed_range
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#endif
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namespace std _GLIBCXX_VISIBILITY(default)
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{
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_GLIBCXX_BEGIN_NAMESPACE_VERSION
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namespace filesystem
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{
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/** @addtogroup filesystem
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* @{
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*/
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/// Information about a file's type and permissions.
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/**
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* @headerfile filesystem
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* @since C++17
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*/
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class file_status
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{
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public:
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// constructors and destructor
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file_status() noexcept : file_status(file_type::none) {}
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explicit
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file_status(file_type __ft, perms __prms = perms::unknown) noexcept
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: _M_type(__ft), _M_perms(__prms) { }
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file_status(const file_status&) noexcept = default;
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file_status(file_status&&) noexcept = default;
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~file_status() = default;
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file_status& operator=(const file_status&) noexcept = default;
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file_status& operator=(file_status&&) noexcept = default;
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// observers
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file_type type() const noexcept { return _M_type; }
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perms permissions() const noexcept { return _M_perms; }
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// modifiers
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void type(file_type __ft) noexcept { _M_type = __ft; }
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void permissions(perms __prms) noexcept { _M_perms = __prms; }
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#if __cpp_lib_three_way_comparison
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friend bool
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operator==(const file_status&, const file_status&) noexcept = default;
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#endif
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private:
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file_type _M_type;
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perms _M_perms;
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};
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_GLIBCXX_BEGIN_NAMESPACE_CXX11
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struct _Dir;
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class directory_iterator;
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class recursive_directory_iterator;
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/// The value type used by directory iterators
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/**
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* @headerfile filesystem
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* @since C++17
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*/
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class directory_entry
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{
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public:
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// constructors and destructor
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directory_entry() noexcept = default;
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directory_entry(const directory_entry&) = default;
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directory_entry(directory_entry&&) noexcept = default;
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explicit
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directory_entry(const filesystem::path& __p)
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: _M_path(__p)
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{ refresh(); }
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directory_entry(const filesystem::path& __p, error_code& __ec)
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: _M_path(__p)
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{
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refresh(__ec);
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if (__ec)
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_M_path.clear();
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}
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~directory_entry() = default;
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// modifiers
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directory_entry& operator=(const directory_entry&) = default;
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directory_entry& operator=(directory_entry&&) noexcept = default;
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void
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assign(const filesystem::path& __p)
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{
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_M_path = __p;
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refresh();
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}
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void
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assign(const filesystem::path& __p, error_code& __ec)
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{
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_M_path = __p;
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refresh(__ec);
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}
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void
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replace_filename(const filesystem::path& __p)
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{
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_M_path.replace_filename(__p);
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refresh();
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}
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void
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replace_filename(const filesystem::path& __p, error_code& __ec)
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{
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_M_path.replace_filename(__p);
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refresh(__ec);
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}
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void
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refresh()
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{ _M_type = symlink_status().type(); }
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void
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refresh(error_code& __ec) noexcept
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{ _M_type = symlink_status(__ec).type(); }
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// observers
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const filesystem::path& path() const noexcept { return _M_path; }
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operator const filesystem::path& () const noexcept { return _M_path; }
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bool
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exists() const
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{ return filesystem::exists(file_status{_M_file_type()}); }
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bool
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exists(error_code& __ec) const noexcept
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{ return filesystem::exists(file_status{_M_file_type(__ec)}); }
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bool
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is_block_file() const
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{ return _M_file_type() == file_type::block; }
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bool
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is_block_file(error_code& __ec) const noexcept
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{ return _M_file_type(__ec) == file_type::block; }
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bool
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is_character_file() const
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{ return _M_file_type() == file_type::character; }
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bool
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is_character_file(error_code& __ec) const noexcept
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{ return _M_file_type(__ec) == file_type::character; }
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bool
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is_directory() const
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{ return _M_file_type() == file_type::directory; }
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bool
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is_directory(error_code& __ec) const noexcept
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{ return _M_file_type(__ec) == file_type::directory; }
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bool
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is_fifo() const
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{ return _M_file_type() == file_type::fifo; }
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bool
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is_fifo(error_code& __ec) const noexcept
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{ return _M_file_type(__ec) == file_type::fifo; }
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bool
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is_other() const
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{ return filesystem::is_other(file_status{_M_file_type()}); }
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bool
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is_other(error_code& __ec) const noexcept
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{ return filesystem::is_other(file_status{_M_file_type(__ec)}); }
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bool
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is_regular_file() const
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{ return _M_file_type() == file_type::regular; }
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bool
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is_regular_file(error_code& __ec) const noexcept
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{ return _M_file_type(__ec) == file_type::regular; }
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bool
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is_socket() const
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{ return _M_file_type() == file_type::socket; }
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bool
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is_socket(error_code& __ec) const noexcept
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{ return _M_file_type(__ec) == file_type::socket; }
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bool
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is_symlink() const
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{
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if (_M_type != file_type::none)
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return _M_type == file_type::symlink;
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return symlink_status().type() == file_type::symlink;
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}
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bool
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is_symlink(error_code& __ec) const noexcept
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{
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if (_M_type != file_type::none)
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return _M_type == file_type::symlink;
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return symlink_status(__ec).type() == file_type::symlink;
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}
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uintmax_t
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file_size() const
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{ return filesystem::file_size(_M_path); }
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uintmax_t
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file_size(error_code& __ec) const noexcept
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{ return filesystem::file_size(_M_path, __ec); }
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uintmax_t
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hard_link_count() const
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{ return filesystem::hard_link_count(_M_path); }
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uintmax_t
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hard_link_count(error_code& __ec) const noexcept
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{ return filesystem::hard_link_count(_M_path, __ec); }
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file_time_type
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last_write_time() const
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{ return filesystem::last_write_time(_M_path); }
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file_time_type
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last_write_time(error_code& __ec) const noexcept
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{ return filesystem::last_write_time(_M_path, __ec); }
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file_status
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status() const
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{ return filesystem::status(_M_path); }
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file_status
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status(error_code& __ec) const noexcept
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{ return filesystem::status(_M_path, __ec); }
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file_status
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symlink_status() const
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{ return filesystem::symlink_status(_M_path); }
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file_status
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symlink_status(error_code& __ec) const noexcept
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{ return filesystem::symlink_status(_M_path, __ec); }
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bool
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operator==(const directory_entry& __rhs) const noexcept
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{ return _M_path == __rhs._M_path; }
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#if __cpp_lib_three_way_comparison
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strong_ordering
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operator<=>(const directory_entry& __rhs) const noexcept
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{ return _M_path <=> __rhs._M_path; }
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#else
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bool
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operator!=(const directory_entry& __rhs) const noexcept
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{ return _M_path != __rhs._M_path; }
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bool
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operator< (const directory_entry& __rhs) const noexcept
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{ return _M_path < __rhs._M_path; }
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bool
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operator<=(const directory_entry& __rhs) const noexcept
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{ return _M_path <= __rhs._M_path; }
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bool
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operator> (const directory_entry& __rhs) const noexcept
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{ return _M_path > __rhs._M_path; }
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bool
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operator>=(const directory_entry& __rhs) const noexcept
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{ return _M_path >= __rhs._M_path; }
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#endif
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private:
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friend struct _Dir;
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friend class directory_iterator;
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friend class recursive_directory_iterator;
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// 3171. LWG 2989 breaks directory_entry stream insertion
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template<typename _CharT, typename _Traits>
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friend basic_ostream<_CharT, _Traits>&
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operator<<(basic_ostream<_CharT, _Traits>& __os,
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const directory_entry& __d)
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{ return __os << __d.path(); }
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directory_entry(const filesystem::path& __p, file_type __t)
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: _M_path(__p), _M_type(__t)
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{ }
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// Equivalent to status().type() but uses cached value, if any.
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file_type
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_M_file_type() const
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{
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if (_M_type != file_type::none && _M_type != file_type::symlink)
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return _M_type;
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return status().type();
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}
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// Equivalent to status(__ec).type() but uses cached value, if any.
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file_type
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_M_file_type(error_code& __ec) const noexcept
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{
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if (_M_type != file_type::none && _M_type != file_type::symlink)
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{
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__ec.clear();
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return _M_type;
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}
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return status(__ec).type();
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}
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filesystem::path _M_path;
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file_type _M_type = file_type::none;
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};
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/// @cond undocumented
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/// Proxy returned by post-increment on directory iterators.
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/**
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* @headerfile filesystem
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* @since C++17
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*/
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struct __directory_iterator_proxy
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{
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const directory_entry& operator*() const& noexcept { return _M_entry; }
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directory_entry operator*() && noexcept { return std::move(_M_entry); }
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private:
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friend class directory_iterator;
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friend class recursive_directory_iterator;
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explicit
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__directory_iterator_proxy(const directory_entry& __e) : _M_entry(__e) { }
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directory_entry _M_entry;
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};
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/// @endcond
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/// Iterator type for traversing the entries in a single directory.
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/**
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* @headerfile filesystem
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* @since C++17
|
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*/
|
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class directory_iterator
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{
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public:
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typedef directory_entry value_type;
|
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typedef ptrdiff_t difference_type;
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typedef const directory_entry* pointer;
|
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typedef const directory_entry& reference;
|
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typedef input_iterator_tag iterator_category;
|
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|
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directory_iterator() = default;
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|
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explicit
|
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directory_iterator(const path& __p)
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: directory_iterator(__p, directory_options::none, nullptr) { }
|
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|
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directory_iterator(const path& __p, directory_options __options)
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: directory_iterator(__p, __options, nullptr) { }
|
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|
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directory_iterator(const path& __p, error_code& __ec)
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: directory_iterator(__p, directory_options::none, __ec) { }
|
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|
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directory_iterator(const path& __p, directory_options __options,
|
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error_code& __ec)
|
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: directory_iterator(__p, __options, &__ec) { }
|
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|
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directory_iterator(const directory_iterator& __rhs) = default;
|
||||
|
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directory_iterator(directory_iterator&& __rhs) noexcept = default;
|
||||
|
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~directory_iterator() = default;
|
||||
|
||||
directory_iterator&
|
||||
operator=(const directory_iterator& __rhs) = default;
|
||||
|
||||
directory_iterator&
|
||||
operator=(directory_iterator&& __rhs) noexcept = default;
|
||||
|
||||
const directory_entry& operator*() const noexcept;
|
||||
const directory_entry* operator->() const noexcept { return &**this; }
|
||||
directory_iterator& operator++();
|
||||
directory_iterator& increment(error_code& __ec);
|
||||
|
||||
__directory_iterator_proxy operator++(int)
|
||||
{
|
||||
__directory_iterator_proxy __pr{**this};
|
||||
++*this;
|
||||
return __pr;
|
||||
}
|
||||
|
||||
friend bool
|
||||
operator==(const directory_iterator& __lhs,
|
||||
const directory_iterator& __rhs) noexcept
|
||||
{
|
||||
return !__rhs._M_dir.owner_before(__lhs._M_dir)
|
||||
&& !__lhs._M_dir.owner_before(__rhs._M_dir);
|
||||
}
|
||||
|
||||
#if __cplusplus >= 202002L
|
||||
// _GLIBCXX_RESOLVE_LIB_DEFECTS
|
||||
// 3719. Directory iterators should be usable with default sentinel
|
||||
bool operator==(default_sentinel_t) const noexcept
|
||||
{ return !_M_dir; }
|
||||
#endif
|
||||
|
||||
#if __cpp_impl_three_way_comparison < 201907L
|
||||
friend bool
|
||||
operator!=(const directory_iterator& __lhs,
|
||||
const directory_iterator& __rhs) noexcept
|
||||
{ return !(__lhs == __rhs); }
|
||||
#endif
|
||||
|
||||
private:
|
||||
directory_iterator(const path&, directory_options, error_code*);
|
||||
|
||||
friend class recursive_directory_iterator;
|
||||
|
||||
std::__shared_ptr<_Dir> _M_dir;
|
||||
};
|
||||
|
||||
/** @relates std::filesystem::directory_iterator
|
||||
* @headerfile filesystem
|
||||
* @since C++17
|
||||
* @{
|
||||
*/
|
||||
|
||||
/** @brief Enable range-based `for` using directory_iterator.
|
||||
*
|
||||
* e.g. `for (auto& entry : std::filesystem::directory_iterator(".")) ...`
|
||||
*/
|
||||
inline directory_iterator
|
||||
begin(directory_iterator __iter) noexcept
|
||||
{ return __iter; }
|
||||
|
||||
/// Return a past-the-end directory_iterator
|
||||
inline directory_iterator
|
||||
end(directory_iterator) noexcept
|
||||
{ return directory_iterator(); }
|
||||
/// @}
|
||||
|
||||
/// Iterator type for recursively traversing a directory hierarchy.
|
||||
/**
|
||||
* @headerfile filesystem
|
||||
* @since C++17
|
||||
*/
|
||||
class recursive_directory_iterator
|
||||
{
|
||||
public:
|
||||
typedef directory_entry value_type;
|
||||
typedef ptrdiff_t difference_type;
|
||||
typedef const directory_entry* pointer;
|
||||
typedef const directory_entry& reference;
|
||||
typedef input_iterator_tag iterator_category;
|
||||
|
||||
recursive_directory_iterator() = default;
|
||||
|
||||
explicit
|
||||
recursive_directory_iterator(const path& __p)
|
||||
: recursive_directory_iterator(__p, directory_options::none, nullptr) { }
|
||||
|
||||
recursive_directory_iterator(const path& __p, directory_options __options)
|
||||
: recursive_directory_iterator(__p, __options, nullptr) { }
|
||||
|
||||
recursive_directory_iterator(const path& __p, directory_options __options,
|
||||
error_code& __ec)
|
||||
: recursive_directory_iterator(__p, __options, &__ec) { }
|
||||
|
||||
recursive_directory_iterator(const path& __p, error_code& __ec)
|
||||
: recursive_directory_iterator(__p, directory_options::none, &__ec) { }
|
||||
|
||||
recursive_directory_iterator(
|
||||
const recursive_directory_iterator&) = default;
|
||||
|
||||
recursive_directory_iterator(recursive_directory_iterator&&) = default;
|
||||
|
||||
~recursive_directory_iterator();
|
||||
|
||||
// observers
|
||||
directory_options options() const noexcept;
|
||||
int depth() const noexcept;
|
||||
bool recursion_pending() const noexcept;
|
||||
|
||||
const directory_entry& operator*() const noexcept;
|
||||
const directory_entry* operator->() const noexcept { return &**this; }
|
||||
|
||||
// modifiers
|
||||
recursive_directory_iterator&
|
||||
operator=(const recursive_directory_iterator& __rhs) noexcept;
|
||||
recursive_directory_iterator&
|
||||
operator=(recursive_directory_iterator&& __rhs) noexcept;
|
||||
|
||||
recursive_directory_iterator& operator++();
|
||||
recursive_directory_iterator& increment(error_code& __ec);
|
||||
|
||||
__directory_iterator_proxy operator++(int)
|
||||
{
|
||||
__directory_iterator_proxy __pr{**this};
|
||||
++*this;
|
||||
return __pr;
|
||||
}
|
||||
|
||||
void pop();
|
||||
void pop(error_code&);
|
||||
|
||||
void disable_recursion_pending() noexcept;
|
||||
|
||||
friend bool
|
||||
operator==(const recursive_directory_iterator& __lhs,
|
||||
const recursive_directory_iterator& __rhs) noexcept
|
||||
{
|
||||
return !__rhs._M_dirs.owner_before(__lhs._M_dirs)
|
||||
&& !__lhs._M_dirs.owner_before(__rhs._M_dirs);
|
||||
}
|
||||
|
||||
#if __cplusplus >= 202002L
|
||||
// _GLIBCXX_RESOLVE_LIB_DEFECTS
|
||||
// 3719. Directory iterators should be usable with default sentinel
|
||||
bool operator==(default_sentinel_t) const noexcept
|
||||
{ return !_M_dirs; }
|
||||
#endif
|
||||
|
||||
#if __cpp_impl_three_way_comparison < 201907L
|
||||
friend bool
|
||||
operator!=(const recursive_directory_iterator& __lhs,
|
||||
const recursive_directory_iterator& __rhs) noexcept
|
||||
{ return !(__lhs == __rhs); }
|
||||
#endif
|
||||
|
||||
private:
|
||||
recursive_directory_iterator(const path&, directory_options, error_code*);
|
||||
|
||||
struct _Dir_stack;
|
||||
std::__shared_ptr<_Dir_stack> _M_dirs;
|
||||
|
||||
recursive_directory_iterator&
|
||||
__erase(error_code* = nullptr);
|
||||
|
||||
friend uintmax_t
|
||||
filesystem::remove_all(const path&, error_code&);
|
||||
friend uintmax_t
|
||||
filesystem::remove_all(const path&);
|
||||
};
|
||||
|
||||
/** @relates std::filesystem::directory_iterator
|
||||
* @headerfile filesystem
|
||||
* @since C++17
|
||||
* @{
|
||||
*/
|
||||
|
||||
/** @brief Enable range-based `for` using recursive_directory_iterator.
|
||||
*
|
||||
* e.g. `for (auto& entry : recursive_directory_iterator(".")) ...`
|
||||
*/
|
||||
inline recursive_directory_iterator
|
||||
begin(recursive_directory_iterator __iter) noexcept
|
||||
{ return __iter; }
|
||||
|
||||
/// Return a past-the-end recursive_directory_iterator
|
||||
inline recursive_directory_iterator
|
||||
end(recursive_directory_iterator) noexcept
|
||||
{ return recursive_directory_iterator(); }
|
||||
/// @}
|
||||
|
||||
_GLIBCXX_END_NAMESPACE_CXX11
|
||||
|
||||
/// @} group filesystem
|
||||
} // namespace filesystem
|
||||
|
||||
// Use explicit instantiations of these types. Any inconsistency in the
|
||||
// value of __default_lock_policy between code including this header and
|
||||
// the library will cause a linker error.
|
||||
extern template class
|
||||
__shared_ptr<filesystem::_Dir>;
|
||||
extern template class
|
||||
__shared_ptr<filesystem::recursive_directory_iterator::_Dir_stack>;
|
||||
|
||||
#if __glibcxx_ranges // >= C++20
|
||||
// _GLIBCXX_RESOLVE_LIB_DEFECTS
|
||||
// 3480. directory_iterator and recursive_directory_iterator are not ranges
|
||||
namespace ranges
|
||||
{
|
||||
template<>
|
||||
inline constexpr bool
|
||||
enable_borrowed_range<filesystem::directory_iterator> = true;
|
||||
template<>
|
||||
inline constexpr bool
|
||||
enable_borrowed_range<filesystem::recursive_directory_iterator> = true;
|
||||
|
||||
template<>
|
||||
inline constexpr bool
|
||||
enable_view<filesystem::directory_iterator> = true;
|
||||
template<>
|
||||
inline constexpr bool
|
||||
enable_view<filesystem::recursive_directory_iterator> = true;
|
||||
} // namespace ranges
|
||||
#endif // ranges
|
||||
|
||||
_GLIBCXX_END_NAMESPACE_VERSION
|
||||
} // namespace std
|
||||
|
||||
#endif // C++17
|
||||
|
||||
#endif // _GLIBCXX_FS_DIR_H
|
||||
Reference in New Issue
Block a user