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// Filesystem directory utilities -*- C++ -*-

// Copyright (C) 2014-2018 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/** @file experimental/bits/fs_dir.h
 *  This is an internal header file, included by other library headers.
 *  Do not attempt to use it directly. @headername{experimental/filesystem}
 */

#ifndef _GLIBCXX_EXPERIMENTAL_FS_DIR_H
#define _GLIBCXX_EXPERIMENTAL_FS_DIR_H 1

#if __cplusplus < 201103L
# include <bits/c++0x_warning.h>
#else
# include <typeinfo>
# include <ext/concurrence.h>
# include <bits/unique_ptr.h>
# include <bits/shared_ptr.h>

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

namespace experimental
{
namespace filesystem
{
inline namespace v1
{
  /**
   * @ingroup filesystem-ts
   * @{
   */

class file_status
  {
  public:
    // constructors
    explicit
    file_status(file_type __ft = file_type::none,
	        perms __prms = perms::unknown) noexcept
    : _M_type(__ft), _M_perms(__prms) { }

file_status(const file_status&) noexcept = default;
    file_status(file_status&&) noexcept = default;
    ~file_status() = default;

file_status& operator=(const file_status&) noexcept = default;
    file_status& operator=(file_status&&) noexcept = default;

// observers
    file_type  type() const noexcept { return _M_type; }
    perms      permissions() const noexcept { return _M_perms; }

// modifiers
    void       type(file_type __ft) noexcept { _M_type = __ft; }
    void       permissions(perms __prms) noexcept { _M_perms = __prms; }

private:
    file_type	_M_type;
    perms	_M_perms;
  };

_GLIBCXX_BEGIN_NAMESPACE_CXX11

class directory_entry
  {
  public:
    // constructors and destructor
    directory_entry() noexcept = default;
    directory_entry(const directory_entry&) = default;
    directory_entry(directory_entry&&) noexcept = default;
    explicit directory_entry(const filesystem::path& __p) : _M_path(__p) { }
    ~directory_entry() = default;

// modifiers
    directory_entry& operator=(const directory_entry&) = default;
    directory_entry& operator=(directory_entry&&) noexcept = default;

void assign(const filesystem::path& __p) { _M_path = __p; }

void
    replace_filename(const filesystem::path& __p)
    { _M_path = _M_path.parent_path() / __p; }

// observers
    const filesystem::path&  path() const noexcept { return _M_path; }
    operator const filesystem::path&() const noexcept { return _M_path; }

file_status
    status() const
    { return filesystem::status(_M_path); }

file_status
    status(error_code& __ec) const noexcept
    { return filesystem::status(_M_path, __ec); }

file_status
    symlink_status() const
    { return filesystem::symlink_status(_M_path); }

file_status
    symlink_status(error_code& __ec) const noexcept
    { return filesystem::symlink_status(_M_path, __ec); }

bool
    operator< (const directory_entry& __rhs) const noexcept
    { return _M_path < __rhs._M_path; }

bool
    operator==(const directory_entry& __rhs) const noexcept
    { return _M_path == __rhs._M_path; }

bool
    operator!=(const directory_entry& __rhs) const noexcept
    { return _M_path != __rhs._M_path; }

bool
    operator<=(const directory_entry& __rhs) const noexcept
    { return _M_path <= __rhs._M_path; }

bool
    operator> (const directory_entry& __rhs) const noexcept
    { return _M_path > __rhs._M_path; }

bool
    operator>=(const directory_entry& __rhs) const noexcept
    { return _M_path >= __rhs._M_path; }

private:
    filesystem::path    _M_path;
  };

struct _Dir;
  class directory_iterator;
  class recursive_directory_iterator;

struct __directory_iterator_proxy
  {
    const directory_entry& operator*() const& noexcept { return _M_entry; }

directory_entry operator*() && noexcept { return std::move(_M_entry); }

private:
    friend class directory_iterator;
    friend class recursive_directory_iterator;

explicit
    __directory_iterator_proxy(const directory_entry& __e) : _M_entry(__e) { }

directory_entry _M_entry;
  };

class 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;

directory_iterator() = default;

explicit
    directory_iterator(const path& __p)
    : directory_iterator(__p, directory_options::none, nullptr) { }

directory_iterator(const path& __p, directory_options __options)
    : directory_iterator(__p, __options, nullptr) { }

directory_iterator(const path& __p, error_code& __ec) noexcept
    : directory_iterator(__p, directory_options::none, __ec) { }

directory_iterator(const path& __p,
		       directory_options __options,
		       error_code& __ec) noexcept
    : directory_iterator(__p, __options, &__ec) { }

directory_iterator(const directory_iterator& __rhs) = default;

directory_iterator(directory_iterator&& __rhs) noexcept = default;

~directory_iterator() = default;

directory_iterator&
    operator=(const directory_iterator& __rhs) = default;

directory_iterator&
    operator=(directory_iterator&& __rhs) noexcept = default;

const directory_entry& operator*() const;
    const directory_entry* operator->() const { return &**this; }
    directory_iterator&    operator++();
    directory_iterator&    increment(error_code& __ec) noexcept;

__directory_iterator_proxy operator++(int)
    {
      __directory_iterator_proxy __pr{**this};
      ++*this;
      return __pr;
    }

private:
    directory_iterator(const path&, directory_options, error_code*);

friend bool
    operator==(const directory_iterator& __lhs,
               const directory_iterator& __rhs);

friend class recursive_directory_iterator;

std::shared_ptr<_Dir> _M_dir;
  };

inline directory_iterator
  begin(directory_iterator __iter) noexcept
  { return __iter; }

inline directory_iterator
  end(directory_iterator) noexcept
  { return directory_iterator(); }

inline bool
  operator==(const directory_iterator& __lhs, const directory_iterator& __rhs)
  {
    return !__rhs._M_dir.owner_before(__lhs._M_dir)
      && !__lhs._M_dir.owner_before(__rhs._M_dir);
  }

inline bool
  operator!=(const directory_iterator& __lhs, const directory_iterator& __rhs)
  { return !(__lhs == __rhs); }

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) noexcept
    : recursive_directory_iterator(__p, __options, &__ec) { }

recursive_directory_iterator(const path& __p, error_code& __ec) noexcept
    : 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 { return _M_options; }
    int                depth() const;
    bool               recursion_pending() const { return _M_pending; }

const directory_entry& operator*() const;
    const directory_entry* operator->() const { 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) noexcept;

__directory_iterator_proxy operator++(int)
    {
      __directory_iterator_proxy __pr{**this};
      ++*this;
      return __pr;
    }

void pop();
    void pop(error_code&);

void disable_recursion_pending() { _M_pending = false; }

private:
    recursive_directory_iterator(const path&, directory_options, error_code*);

friend bool
    operator==(const recursive_directory_iterator& __lhs,
               const recursive_directory_iterator& __rhs);

struct _Dir_stack;
    std::shared_ptr<_Dir_stack> _M_dirs;
    directory_options _M_options = {};
    bool _M_pending = false;
  };

inline recursive_directory_iterator
  begin(recursive_directory_iterator __iter) noexcept
  { return __iter; }

inline recursive_directory_iterator
  end(recursive_directory_iterator) noexcept
  { return recursive_directory_iterator(); }

inline bool
  operator==(const recursive_directory_iterator& __lhs,
             const recursive_directory_iterator& __rhs)
  {
    return !__rhs._M_dirs.owner_before(__lhs._M_dirs)
      && !__lhs._M_dirs.owner_before(__rhs._M_dirs);
  }

inline bool
  operator!=(const recursive_directory_iterator& __lhs,
             const recursive_directory_iterator& __rhs)
  { return !(__lhs == __rhs); }

_GLIBCXX_END_NAMESPACE_CXX11

// @} group filesystem-ts
} // namespace v1
} // namespace filesystem
} // namespace experimental

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace std

#endif // C++11

#endif // _GLIBCXX_EXPERIMENTAL_FS_DIR_H

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[ .. Voltar ]
📄 erase_if.h	0644	[ EDITAR/VER ]
📄 fs_dir.h	0644	[ EDITAR/VER ]
📄 fs_fwd.h	0644	[ EDITAR/VER ]
📄 fs_ops.h	0644	[ EDITAR/VER ]
📄 fs_path.h	0644	[ EDITAR/VER ]
📄 lfts_config.h	0644	[ EDITAR/VER ]
📄 shared_ptr.h	0644	[ EDITAR/VER ]
📄 string_view.tcc	0644	[ EDITAR/VER ]

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📝 Editando: fs_dir.h