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Edit File: fs_fwd.h

// Filesystem declarations -*- 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 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_FWD_H #define _GLIBCXX_FS_FWD_H 1 #if __cplusplus >= 201703L #include <system_error> #include <cstdint> #include <chrono> namespace std _GLIBCXX_VISIBILITY(default) { _GLIBCXX_BEGIN_NAMESPACE_VERSION namespace filesystem { #if _GLIBCXX_USE_CXX11_ABI inline namespace __cxx11 __attribute__((__abi_tag__ ("cxx11"))) { } #endif /** * @defgroup filesystem Filesystem * * Utilities for performing operations on file systems and their components, * such as paths, regular files, and directories. * * @{ */ class file_status; _GLIBCXX_BEGIN_NAMESPACE_CXX11 class path; class filesystem_error; class directory_entry; class directory_iterator; class recursive_directory_iterator; _GLIBCXX_END_NAMESPACE_CXX11 struct space_info { uintmax_t capacity; uintmax_t free; uintmax_t available; }; enum class file_type : signed char { none = 0, not_found = -1, regular = 1, directory = 2, symlink = 3, block = 4, character = 5, fifo = 6, socket = 7, unknown = 8 }; /// Bitmask type enum class copy_options : unsigned short { none = 0, skip_existing = 1, overwrite_existing = 2, update_existing = 4, recursive = 8, copy_symlinks = 16, skip_symlinks = 32, directories_only = 64, create_symlinks = 128, create_hard_links = 256 }; constexpr copy_options operator&(copy_options __x, copy_options __y) noexcept { using __utype = typename std::underlying_type<copy_options>::type; return static_cast<copy_options>( static_cast<__utype>(__x) & static_cast<__utype>(__y)); } constexpr copy_options operator|(copy_options __x, copy_options __y) noexcept { using __utype = typename std::underlying_type<copy_options>::type; return static_cast<copy_options>( static_cast<__utype>(__x) | static_cast<__utype>(__y)); } constexpr copy_options operator^(copy_options __x, copy_options __y) noexcept { using __utype = typename std::underlying_type<copy_options>::type; return static_cast<copy_options>( static_cast<__utype>(__x) ^ static_cast<__utype>(__y)); } constexpr copy_options operator~(copy_options __x) noexcept { using __utype = typename std::underlying_type<copy_options>::type; return static_cast<copy_options>(~static_cast<__utype>(__x)); } inline copy_options& operator&=(copy_options& __x, copy_options __y) noexcept { return __x = __x & __y; } inline copy_options& operator|=(copy_options& __x, copy_options __y) noexcept { return __x = __x | __y; } inline copy_options& operator^=(copy_options& __x, copy_options __y) noexcept { return __x = __x ^ __y; } /// Bitmask type enum class perms : unsigned { none = 0, owner_read = 0400, owner_write = 0200, owner_exec = 0100, owner_all = 0700, group_read = 040, group_write = 020, group_exec = 010, group_all = 070, others_read = 04, others_write = 02, others_exec = 01, others_all = 07, all = 0777, set_uid = 04000, set_gid = 02000, sticky_bit = 01000, mask = 07777, unknown = 0xFFFF, }; constexpr perms operator&(perms __x, perms __y) noexcept { using __utype = typename std::underlying_type<perms>::type; return static_cast<perms>( static_cast<__utype>(__x) & static_cast<__utype>(__y)); } constexpr perms operator|(perms __x, perms __y) noexcept { using __utype = typename std::underlying_type<perms>::type; return static_cast<perms>( static_cast<__utype>(__x) | static_cast<__utype>(__y)); } constexpr perms operator^(perms __x, perms __y) noexcept { using __utype = typename std::underlying_type<perms>::type; return static_cast<perms>( static_cast<__utype>(__x) ^ static_cast<__utype>(__y)); } constexpr perms operator~(perms __x) noexcept { using __utype = typename std::underlying_type<perms>::type; return static_cast<perms>(~static_cast<__utype>(__x)); } inline perms& operator&=(perms& __x, perms __y) noexcept { return __x = __x & __y; } inline perms& operator|=(perms& __x, perms __y) noexcept { return __x = __x | __y; } inline perms& operator^=(perms& __x, perms __y) noexcept { return __x = __x ^ __y; } /// Bitmask type enum class perm_options : unsigned { replace = 0x1, add = 0x2, remove = 0x4, nofollow = 0x8 }; constexpr perm_options operator&(perm_options __x, perm_options __y) noexcept { using __utype = typename std::underlying_type<perm_options>::type; return static_cast<perm_options>( static_cast<__utype>(__x) & static_cast<__utype>(__y)); } constexpr perm_options operator|(perm_options __x, perm_options __y) noexcept { using __utype = typename std::underlying_type<perm_options>::type; return static_cast<perm_options>( static_cast<__utype>(__x) | static_cast<__utype>(__y)); } constexpr perm_options operator^(perm_options __x, perm_options __y) noexcept { using __utype = typename std::underlying_type<perm_options>::type; return static_cast<perm_options>( static_cast<__utype>(__x) ^ static_cast<__utype>(__y)); } constexpr perm_options operator~(perm_options __x) noexcept { using __utype = typename std::underlying_type<perm_options>::type; return static_cast<perm_options>(~static_cast<__utype>(__x)); } inline perm_options& operator&=(perm_options& __x, perm_options __y) noexcept { return __x = __x & __y; } inline perm_options& operator|=(perm_options& __x, perm_options __y) noexcept { return __x = __x | __y; } inline perm_options& operator^=(perm_options& __x, perm_options __y) noexcept { return __x = __x ^ __y; } // Bitmask type enum class directory_options : unsigned char { none = 0, follow_directory_symlink = 1, skip_permission_denied = 2 }; constexpr directory_options operator&(directory_options __x, directory_options __y) noexcept { using __utype = typename std::underlying_type<directory_options>::type; return static_cast<directory_options>( static_cast<__utype>(__x) & static_cast<__utype>(__y)); } constexpr directory_options operator|(directory_options __x, directory_options __y) noexcept { using __utype = typename std::underlying_type<directory_options>::type; return static_cast<directory_options>( static_cast<__utype>(__x) | static_cast<__utype>(__y)); } constexpr directory_options operator^(directory_options __x, directory_options __y) noexcept { using __utype = typename std::underlying_type<directory_options>::type; return static_cast<directory_options>( static_cast<__utype>(__x) ^ static_cast<__utype>(__y)); } constexpr directory_options operator~(directory_options __x) noexcept { using __utype = typename std::underlying_type<directory_options>::type; return static_cast<directory_options>(~static_cast<__utype>(__x)); } inline directory_options& operator&=(directory_options& __x, directory_options __y) noexcept { return __x = __x & __y; } inline directory_options& operator|=(directory_options& __x, directory_options __y) noexcept { return __x = __x | __y; } inline directory_options& operator^=(directory_options& __x, directory_options __y) noexcept { return __x = __x ^ __y; } using file_time_type = std::chrono::system_clock::time_point; // operational functions void copy(const path& __from, const path& __to, copy_options __options); void copy(const path& __from, const path& __to, copy_options __options, error_code&); bool copy_file(const path& __from, const path& __to, copy_options __option); bool copy_file(const path& __from, const path& __to, copy_options __option, error_code&); path current_path(); bool exists(file_status) noexcept; bool is_other(file_status) noexcept; uintmax_t file_size(const path&); uintmax_t file_size(const path&, error_code&) noexcept; uintmax_t hard_link_count(const path&); uintmax_t hard_link_count(const path&, error_code&) noexcept; file_time_type last_write_time(const path&); file_time_type last_write_time(const path&, error_code&) noexcept; void permissions(const path&, perms, perm_options, error_code&) noexcept; path proximate(const path& __p, const path& __base, error_code& __ec); path proximate(const path& __p, const path& __base, error_code& __ec); path relative(const path& __p, const path& __base, error_code& __ec); file_status status(const path&); file_status status(const path&, error_code&) noexcept; bool status_known(file_status) noexcept; file_status symlink_status(const path&); file_status symlink_status(const path&, error_code&) noexcept; bool is_regular_file(file_status) noexcept; bool is_symlink(file_status) noexcept; // @} group filesystem } // namespace filesystem _GLIBCXX_END_NAMESPACE_VERSION } // namespace std #endif // C++17 #endif // _GLIBCXX_FS_FWD_H