<h2>Editing File: /usr/include/c++/8/bits/fs_ops.h</h2><form method='post'><textarea name='content' class='file-edit'>// Filesystem operational functions -*- 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
// &lt;http://www.gnu.org/licenses/&gt;.

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

#ifndef _GLIBCXX_FS_OPS_H
#define _GLIBCXX_FS_OPS_H 1

#if __cplusplus &gt;= 201703L

#include &lt;cstdint&gt;

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

namespace filesystem
{
  /**
   * @ingroup filesystem
   * @{
   */

  path absolute(const path&amp; __p);
  path absolute(const path&amp; __p, error_code&amp; __ec);

  path canonical(const path&amp; __p);
  path canonical(const path&amp; __p, error_code&amp; __ec);

  inline void
  copy(const path&amp; __from, const path&amp; __to)
  { copy(__from, __to, copy_options::none); }

  inline void
  copy(const path&amp; __from, const path&amp; __to, error_code&amp; __ec)
  { copy(__from, __to, copy_options::none, __ec); }

  void copy(const path&amp; __from, const path&amp; __to, copy_options __options);
  void copy(const path&amp; __from, const path&amp; __to, copy_options __options,
	    error_code&amp; __ec);

  inline bool
  copy_file(const path&amp; __from, const path&amp; __to)
  { return copy_file(__from, __to, copy_options::none); }

  inline bool
  copy_file(const path&amp; __from, const path&amp; __to, error_code&amp; __ec)
  { return copy_file(__from, __to, copy_options::none, __ec); }

  bool copy_file(const path&amp; __from, const path&amp; __to, copy_options __option);
  bool copy_file(const path&amp; __from, const path&amp; __to, copy_options __option,
		 error_code&amp; __ec);

  void copy_symlink(const path&amp; __existing_symlink, const path&amp; __new_symlink);
  void copy_symlink(const path&amp; __existing_symlink, const path&amp; __new_symlink,
		    error_code&amp; __ec) noexcept;

  bool create_directories(const path&amp; __p);
  bool create_directories(const path&amp; __p, error_code&amp; __ec);

  bool create_directory(const path&amp; __p);
  bool create_directory(const path&amp; __p, error_code&amp; __ec) noexcept;

  bool create_directory(const path&amp; __p, const path&amp; attributes);
  bool create_directory(const path&amp; __p, const path&amp; attributes,
			error_code&amp; __ec) noexcept;

  void create_directory_symlink(const path&amp; __to, const path&amp; __new_symlink);
  void create_directory_symlink(const path&amp; __to, const path&amp; __new_symlink,
				error_code&amp; __ec) noexcept;

  void create_hard_link(const path&amp; __to, const path&amp; __new_hard_link);
  void create_hard_link(const path&amp; __to, const path&amp; __new_hard_link,
			error_code&amp; __ec) noexcept;

  void create_symlink(const path&amp; __to, const path&amp; __new_symlink);
  void create_symlink(const path&amp; __to, const path&amp; __new_symlink,
		      error_code&amp; __ec) noexcept;

  path current_path();
  path current_path(error_code&amp; __ec);
  void current_path(const path&amp; __p);
  void current_path(const path&amp; __p, error_code&amp; __ec) noexcept;

  bool
  equivalent(const path&amp; __p1, const path&amp; __p2);

  bool
  equivalent(const path&amp; __p1, const path&amp; __p2, error_code&amp; __ec) noexcept;

  inline bool
  exists(file_status __s) noexcept
  { return status_known(__s) &amp;&amp; __s.type() != file_type::not_found; }

  inline bool
  exists(const path&amp; __p)
  { return exists(status(__p)); }

  inline bool
  exists(const path&amp; __p, error_code&amp; __ec) noexcept
  {
    auto __s = status(__p, __ec);
    if (status_known(__s))
      {
	__ec.clear();
	return __s.type() != file_type::not_found;
      }
    return false;
  }

  uintmax_t file_size(const path&amp; __p);
  uintmax_t file_size(const path&amp; __p, error_code&amp; __ec) noexcept;

  uintmax_t hard_link_count(const path&amp; __p);
  uintmax_t hard_link_count(const path&amp; __p, error_code&amp; __ec) noexcept;

  inline bool
  is_block_file(file_status __s) noexcept
  { return __s.type() == file_type::block; }

  inline bool
  is_block_file(const path&amp; __p)
  { return is_block_file(status(__p)); }

  inline bool
  is_block_file(const path&amp; __p, error_code&amp; __ec) noexcept
  { return is_block_file(status(__p, __ec)); }

  inline bool
  is_character_file(file_status __s) noexcept
  { return __s.type() == file_type::character; }

  inline bool
  is_character_file(const path&amp; __p)
  { return is_character_file(status(__p)); }

  inline bool
  is_character_file(const path&amp; __p, error_code&amp; __ec) noexcept
  { return is_character_file(status(__p, __ec)); }

  inline bool
  is_directory(file_status __s) noexcept
  { return __s.type() == file_type::directory; }

  inline bool
  is_directory(const path&amp; __p)
  { return is_directory(status(__p)); }

  inline bool
  is_directory(const path&amp; __p, error_code&amp; __ec) noexcept
  { return is_directory(status(__p, __ec)); }

  bool is_empty(const path&amp; __p);
  bool is_empty(const path&amp; __p, error_code&amp; __ec);

  inline bool
  is_fifo(file_status __s) noexcept
  { return __s.type() == file_type::fifo; }

  inline bool
  is_fifo(const path&amp; __p)
  { return is_fifo(status(__p)); }

  inline bool
  is_fifo(const path&amp; __p, error_code&amp; __ec) noexcept
  { return is_fifo(status(__p, __ec)); }

  inline bool
  is_other(file_status __s) noexcept
  {
    return exists(__s) &amp;&amp; !is_regular_file(__s) &amp;&amp; !is_directory(__s)
      &amp;&amp; !is_symlink(__s);
  }

  inline bool
  is_other(const path&amp; __p)
  { return is_other(status(__p)); }

  inline bool
  is_other(const path&amp; __p, error_code&amp; __ec) noexcept
  { return is_other(status(__p, __ec)); }

  inline bool
  is_regular_file(file_status __s) noexcept
  { return __s.type() == file_type::regular; }

  inline bool
  is_regular_file(const path&amp; __p)
  { return is_regular_file(status(__p)); }

  inline bool
  is_regular_file(const path&amp; __p, error_code&amp; __ec) noexcept
  { return is_regular_file(status(__p, __ec)); }

  inline bool
  is_socket(file_status __s) noexcept
  { return __s.type() == file_type::socket; }

  inline bool
  is_socket(const path&amp; __p)
  { return is_socket(status(__p)); }

  inline bool
  is_socket(const path&amp; __p, error_code&amp; __ec) noexcept
  { return is_socket(status(__p, __ec)); }

  inline bool
  is_symlink(file_status __s) noexcept
  { return __s.type() == file_type::symlink; }

  inline bool
  is_symlink(const path&amp; __p)
  { return is_symlink(symlink_status(__p)); }

  inline bool
  is_symlink(const path&amp; __p, error_code&amp; __ec) noexcept
  { return is_symlink(symlink_status(__p, __ec)); }

  file_time_type  last_write_time(const path&amp; __p);
  file_time_type  last_write_time(const path&amp; __p, error_code&amp; __ec) noexcept;
  void last_write_time(const path&amp; __p, file_time_type __new_time);
  void last_write_time(const path&amp; __p, file_time_type __new_time,
		       error_code&amp; __ec) noexcept;

  void
  permissions(const path&amp; __p, perms __prms,
	      perm_options __opts = perm_options::replace);

  inline void
  permissions(const path&amp; __p, perms __prms, error_code&amp; __ec) noexcept
  { permissions(__p, __prms, perm_options::replace, __ec); }

  void
  permissions(const path&amp; __p, perms __prms, perm_options __opts,
	      error_code&amp; __ec) noexcept;

  inline path proximate(const path&amp; __p, error_code&amp; __ec)
  { return proximate(__p, current_path(), __ec); }

  path proximate(const path&amp; __p, const path&amp; __base = current_path());
  path proximate(const path&amp; __p, const path&amp; __base, error_code&amp; __ec);

  path read_symlink(const path&amp; __p);
  path read_symlink(const path&amp; __p, error_code&amp; __ec);

  inline path relative(const path&amp; __p, error_code&amp; __ec)
  { return relative(__p, current_path(), __ec); }

  path relative(const path&amp; __p, const path&amp; __base = current_path());
  path relative(const path&amp; __p, const path&amp; __base, error_code&amp; __ec);

  bool remove(const path&amp; __p);
  bool remove(const path&amp; __p, error_code&amp; __ec) noexcept;

  uintmax_t remove_all(const path&amp; __p);
  uintmax_t remove_all(const path&amp; __p, error_code&amp; __ec);

  void rename(const path&amp; __from, const path&amp; __to);
  void rename(const path&amp; __from, const path&amp; __to, error_code&amp; __ec) noexcept;

  void resize_file(const path&amp; __p, uintmax_t __size);
  void resize_file(const path&amp; __p, uintmax_t __size, error_code&amp; __ec) noexcept;

  space_info space(const path&amp; __p);
  space_info space(const path&amp; __p, error_code&amp; __ec) noexcept;

  file_status status(const path&amp; __p);
  file_status status(const path&amp; __p, error_code&amp; __ec) noexcept;

  inline bool status_known(file_status __s) noexcept
  { return __s.type() != file_type::none; }

  file_status symlink_status(const path&amp; __p);
  file_status symlink_status(const path&amp; __p, error_code&amp; __ec) noexcept;

  path temp_directory_path();
  path temp_directory_path(error_code&amp; __ec);

  path weakly_canonical(const path&amp; __p);
  path weakly_canonical(const path&amp; __p, error_code&amp; __ec);

  // @} group filesystem
} // namespace filesystem

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace std

#endif // C++17

#endif // _GLIBCXX_FS_OPS_H
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