Linux Manuals

std::filesystem::hard_link_count – std::filesystem::hard_link_count Synopsis Defined in header<filesystem> std::uintmax_t hard_link_count(const std::filesystem::path &p); std::uintmax_t hard_link_count(const std::filesystem::path &p, (1)(since C++ 17) std::error_code &ec) noexcept; Returns the number of hard links for the filesystem object identified by path p. The non-throwing overload returns static_cast<uintmax_t>(-1) on errors. Parameters p – path to examine ec – out-parameter for error reporting in…

std::filesystem::filesystem_error::what – std::filesystem::filesystem_error::what Synopsis const char *what() const noexcept override; (since C++ 17) Returns an explanatory byte string. This explanatory string contains the explanatory string passed at the time of construction. Implementations are encouraged to include the pathnames of path1() and path2() in native format and the std::system_error::what() string inside the returned string as well….

std::filesystem::filesystem_error::path1,std::filesystem::filesystem_error::path2 – std::filesystem::filesystem_error::path1,std::filesystem::filesystem_error::path2 Synopsis const std::filesystem::path &path1() const noexcept; (since C++ 17) const std::filesystem::path &path2() const noexcept; (since C++ 17) Returns the paths that were stored in the exception object. Parameters (none) Example  This section is incomplete  Reason: no example

std::filesystem::filesystem_error::filesystem_error – std::filesystem::filesystem_error::filesystem_error Synopsis filesystem_error(const std::string &what_arg, (1)(since C++ 17) std::error_code ec); filesystem_error(const std::string &what_arg, const std::filesystem::path &p1, (2)(since C++ 17) std::error_code ec); filesystem_error(const std::string &what_arg, const std::filesystem::path &p1, (3)(since C++ 17) const std::filesystem::path &p2, std::error_code ec); Constructs a new filesystem error object. The error code is set to ec and optionally, the paths that…

std::filesystem::filesystem_error – std::filesystem::filesystem_error Synopsis Defined in header <filesystem> class filesystem_error; (since C++17) The class std::filesystem::filesystem_error defines an exception object that is thrown on failure by the throwing overloads of the functions in the filesystem library.  std-filesystem-filesystem error-inheritance.svg Inheritance diagram Member functions               constructs the error object constructor (public member function)               returns the paths that were involved…

std::filesystem::file_type – std::filesystem::file_type Synopsis Defined in header <filesystem> enum class file_type { none = /* unspecified */, not_found = /* unspecified */, regular = /* unspecified */, directory = /* unspecified */, symlink = /* unspecified */, block = /* unspecified */, (since C++17) character = /* unspecified */, fifo = /* unspecified */, socket…

std::filesystem::file_time_type – std::filesystem::file_time_type Synopsis Defined in header <filesystem> using file_time_type = std::chrono::time_point</*trivial-clock*/>; (since C++17) (until C++20) using file_time_type = std::chrono::time_point<std::chrono::file_clock>; (since C++20) Represents file time. trivial-clock is an implementation-defined type that satisfies TrivialClock and is sufficient to represent the resolution and range of the file time values offered by the filesystem. (until C++20) Example //…

std::filesystem::file_status::type – std::filesystem::file_status::type Synopsis std::filesystem::file_type type() const noexcept; (1) (since C++17) void type( std::filesystem::file_type type ) noexcept; (2) (since C++17) Accesses the file type information. 1) Returns file type information. 2) Sets file type to type. Parameters type – file type to set to Return value 1) File type information. 2) (none) Example  This section…

std::filesystem::file_status::permissions – std::filesystem::file_status::permissions Synopsis std::filesystem::perms permissions() const noexcept; (1) (since C++17) void permissions( std::filesystem::perms perm ) noexcept; (2) (since C++17) Accesses the file permissions information. 1) Returns file permissions information. 2) Sets file permissions to perm. Parameters perm – file permissions to set to Return value 1) File permissions information. 2) (none) Example  This section…

std::filesystem::file_status::operator= – std::filesystem::file_status::operator= Synopsis file_status &operator=(const file_status &other) noexcept = default; (1)(since C++ 17) file_status & operator=(file_status &&other) noexcept = default; (2)(since C++ 17) Copy- or move-assigns another file status object. Parameters other – another file_status object to assign Return value *this Example  This section is incomplete  Reason: no example

std::filesystem::file_status::file_status – std::filesystem::file_status::file_status Synopsis file_status() noexcept : file_status(std::filesystem::file_type::none){}(1)(since C++ 17) file_status(const file_status &) noexcept = default; (2)(since C++ 17) file_status(file_status &&) noexcept = default; (3)(since C++ 17) explicit file_status( std::filesystem::file_type type, (4)(since C++ 17) std::filesystem::perms permissions = std::filesystem::perms::unknown) noexcept; Constructs a new file_status object. 1) Default constructor that calls (4) with std::filesystem::file_type::none. 2-3) Copy and…

std::filesystem::file_status – std::filesystem::file_status Synopsis Defined in header <filesystem> class file_status; (since C++17) Stores information about the type and permissions of a file. Member functions               constructs a file_status object constructor (public member function)               assigns contents operator= (public member function)               implicit destructor destructor (public member function)               gets or sets the type of the file type (public member…

std::filesystem::file_size – std::filesystem::file_size Synopsis Defined in header<filesystem> std::uintmax_t file_size(const std::filesystem::path &p); std::uintmax_t file_size(const std::filesystem::path &p, (1)(since C++ 17) std::error_code &ec) noexcept; If p does not exist, reports an error. For a regular file p, returns the size determined as if by reading the st_size member of the structure obtained by POSIX stat (symlinks are followed)…

std::filesystem::exists – std::filesystem::exists Synopsis Defined in header<filesystem> bool exists(std::filesystem::file_status s) noexcept; (1)(since C++ 17) bool exists(const std::filesystem::path &p); (2)(since C++ 17) bool exists(const std::filesystem::path &p, std::error_code &ec) noexcept; Checks if the given file status or path corresponds to an existing file or directory. 1) Equivalent to status_known(s) && s.type() != file_type::not_found. 2) Let s be…

std::filesystem::equivalent – std::filesystem::equivalent Synopsis Defined in header<filesystem> bool equivalent(const std::filesystem::path &p1, const std::filesystem::path &p2); bool equivalent(const std::filesystem::path &p1, (1)(since C++ 17) const std::filesystem::path &p2, std::error_code &ec) noexcept; Checks whether the paths p1 and p2 resolve to the same file system entity. If either p1 or p2 does not exist, an error is reported. The non-throwing…

std::filesystem::directory_options – std::filesystem::directory_options Synopsis Defined in header <filesystem> enum class directory_options { none = /* unspecified */, follow_directory_symlink = /* unspecified */, (since C++17) skip_permission_denied = /* unspecified */ }; This type represents available options that control the behavior of the directory_iterator and recursive_directory_iterator. directory_options satisfies the requirements of BitmaskType (which means the bitwise operators…

std::filesystem::directory_iterator::operator= – std::filesystem::directory_iterator::operator= Synopsis directory_iterator &operator=(const directory_iterator &) = default; (since C++ 17) directory_iterator & operator=(directory_iterator &&) = default;  This section is incomplete Parameters  This section is incomplete Return value *this Exceptions  This section is incomplete

std::filesystem::directory_iterator::operator*,std::filesystem::directory_iterator::operator-> – std::filesystem::directory_iterator::operator*,std::filesystem::directory_iterator::operator-> Synopsis const directory_entry &operator*() const; (since C++ 17) const directory_entry * operator->() const; Accesses the pointed-to directory_entry. The result of operator* or operator-> on the end iterator is undefined behavior. Parameters (none) Return value 1) Value of the directory_entry referred to by this iterator 2) Pointer to the directory_entry referred to by…

std::filesystem::directory_iterator::directory_iterator – std::filesystem::directory_iterator::directory_iterator Synopsis directory_iterator() noexcept; (1)(since C++ 17) explicit directory_iterator(const std::filesystem::path &p); (2)(since C++ 17) directory_iterator(const std::filesystem::path &p, (3)(since C++ 17) std::filesystem::directory_options options); directory_iterator(const std::filesystem::path &p, std::error_code &ec); (4)(since C++ 17) directory_iterator(const std::filesystem::path &p, std::filesystem::directory_options options, (5)(since C++ 17) std::error_code &ec); directory_iterator(const directory_iterator &) = default; (6)(since C++ 17) directory_iterator(directory_iterator &&) = default; (7)(since…

std::filesystem::directory_iterator – std::filesystem::directory_iterator Synopsis Defined in header <filesystem> class directory_iterator; (since C++17) directory_iterator is a LegacyInputIterator that iterates over the directory_entry elements of a directory (but does not visit the subdirectories). The iteration order is unspecified, except that each directory entry is visited only once. The special pathnames dot and dot-dot are skipped. If the…