The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
std::filesystem::path::stem – std::filesystem::path::stem Synopsis path stem() const; (since C++17) Returns the filename identified by the generic-format path stripped of its extension. Returns the substring from the beginning of filename() up to and not including the last period (.) character, with the following exceptions: If the first character in the filename is a period, that period…
std::filesystem::path::root_path – std::filesystem::path::root_path Synopsis path root_path() const; (since C++17) Returns the root path of the path. If the path does not include root path, returns path(). Effectively, returns the following: root_name() / root_directory() Parameters (none) Return value The root path of the path. Exceptions (none) Example // Run this code #include <iostream> #include <filesystem> namespace…
std::filesystem::path::root_name – std::filesystem::path::root_name Synopsis path root_name() const; (since C++17) Returns the root name of the generic-format path. If the path (in generic format) does not include root name, returns path(). Parameters (none) Return value The root name of the path. Exceptions (none) Example // Run this code #include <iostream> #include <filesystem> namespace fs = std::filesystem;…
std::filesystem::path::root_directory – std::filesystem::path::root_directory Synopsis path root_directory() const; (since C++17) Returns the root directory of the generic-format path. If the path (in generic format) does not include root directory, returns path(). Parameters (none) Return value The root directory of the path. Exceptions (none) Example // Run this code #include <iostream> #include <filesystem> namespace fs = std::filesystem;…
std::filesystem::path::replace_filename – std::filesystem::path::replace_filename Synopsis path& replace_filename( const path& replacement ); (since C++17) Replaces a single filename component with replacement. Equivalent to the following: remove_filename(); operator/=(replacement); The behavior is undefined if the path has no filename component (has_filename returns false). Parameters (none) Return value *this Exceptions (none) Example // Run this code #include <iostream> #include <filesystem>…
std::filesystem::path::replace_extension – std::filesystem::path::replace_extension Synopsis path &replace_extension(const path &replacement = path()); (1)(since C++ 17) Replaces the extension with replacement or removes it when the default value of replacement is used. Firstly, if this path has an extension(), it is removed from the generic – format view of the pathname. Then, a dot character is appended to…
std::filesystem::path::remove_filename – std::filesystem::path::remove_filename Synopsis path& remove_filename() (1) (since C++17) Removes a single generic-format filename component (as returned by filename) from the given generic-format path. After this function completes, has_filename returns false. Parameters (none) Return value *this Exceptions (none) Example // Run this code #include <iostream> #include <filesystem> namespace fs = std::filesystem; int main() { std::cout…
std::filesystem::path::relative_path – std::filesystem::path::relative_path Synopsis path relative_path() const; (since C++17) Returns path relative to root-path, that is, a pathname composed of every generic-format component of *this after root-path. If *this is an empty path, returns an empty path. Parameters (none) Return value Path relative to the root_path. Exceptions (none) Examples // Run this code #include <iostream>…
std::filesystem::path::~path – std::filesystem::path::~path Synopsis ~path(); (since C++17) Destroys the path object.
std::filesystem::path::parent_path – std::filesystem::path::parent_path Synopsis path parent_path() const; (since C++17) Returns the path to the parent directory. If has_relative_path() returns false, the result is a copy of *this Otherwise, the result is a path whose generic format pathname is the longest prefix of the generic format pathname of *this that produces one fewer element in its…
std::filesystem::path::operator= – std::filesystem::path::operator= Synopsis path &operator=(const path &p); (1)(since C++ 17) path & operator=(path &&p) noexcept; (2)(since C++ 17) path & operator=(string_type &&source); (3)(since C++ 17) template <class Source> (4)(since C++ 17) path & operator=(const Source &source); 1) Replaces the contents of *this with a pathname whose both native and generic format representations equal those…
std::filesystem::path::make_preferred – std::filesystem::path::make_preferred Synopsis path& make_preferred() (1) (since C++17) Converts all directory separators in the generic-format view of the path to the preferred directory separator. For example, on Windows, where \ is the preferred separator, the path foo/bar will be converted to fooar. Parameters (none) Return value *this Exceptions (none) Example This section is incomplete…
std::filesystem::path::lexically_normal,std::filesystem::path::lexically_relative,std::filesystem::path::lexically_proximate – std::filesystem::path::lexically_normal,std::filesystem::path::lexically_relative,std::filesystem::path::lexically_proximate Synopsis path lexically_normal() const; (1) (since C++17) path lexically_relative(const path& base) const; (2) (since C++17) path lexically_proximate(const path& base) const; (3) (since C++17) 1) Returns *this converted to normal_form in its generic format 2) Returns *this made relative to base. *First, if root_name () != base.root_name() || is_absolute() != base.is_absolute() || (!has_root_directory()…
std::filesystem::path::lexically_normal,std::filesystem::path::lexically_relative, – std::filesystem::path::lexically_normal,std::filesystem::path::lexically_relative, Synopsis path lexically_normal() const; (1) (since C++17) path lexically_relative(const path& base) const; (2) (since C++17) path lexically_proximate(const path& base) const; (3) (since C++17) 1) Returns *this converted to normal form in its generic format 2) Returns *this made relative to base. *First, if root_name () != base.root_name() || is_absolute() != base.is_absolute() || (!has_root_directory() && base.has_root_directory()), returns a default – constructed path. *Otherwise, first determines the first mismatched…
std::filesystem::path::is_absolute,is_relative – std::filesystem::path::is_absolute,is_relative Synopsis bool is_absolute() const; (1) (since C++17) bool is_relative() const; (2) (since C++17) Checks whether the path is absolute or relative. An absolute path is a path that unambiguously identifies the location of a file without reference to an additional starting location. The first version returns true if the path, in native…
std::filesystem::path::has_root_path,std::filesystem::path::has_root_name, – std::filesystem::path::has_root_path,std::filesystem::path::has_root_name, Synopsis std::filesystem::path::has_parent_path, std::filesystem::path::has_filename, std::filesystem::path::has_stem, std::filesystem::path::has_extension bool has_root_path() const; (1) (since C++17) bool has_root_name() const; (2) (since C++17) bool has_root_directory() const; (3) (since C++17) bool has_relative_path() const; (4) (since C++17) bool has_parent_path() const; (5) (since C++17) bool has_filename() const; (6) (since C++17) bool has_stem() const; (7) (since C++17) bool has_extension() const; (8) (since C++17) Checks whether the path contains the corresponding path element. 1) Checks whether root_path() is empty. 2) Checks whether root_name() is empty. 3) Checks whether root_directory() is empty. 4) Checks whether…
std::filesystem::path::generic_string,std::filesystem::path::generic_wstring, – std::filesystem::path::generic_string,std::filesystem::path::generic_wstring, Synopsis std::filesystem::path::generic_u32string template <class CharT, class Traits = std::char_traits<CharT>, (since class Alloc = std::allocator<CharT> > (1)C++ 17) std::basic_string<CharT, Traits, Alloc> generic_string(const Alloc &a = Alloc()) const; std::string generic_string() const; std::wstring generic_wstring() const; std::u16string generic_u16string() const; std::u32string generic_u32string() const; (2)(since(since std::string generic_u8string() const; C++ 17) C++ 17)(3)(until C++ 20) std::u8string generic_u8string() const; (since…
std::filesystem::path::format – std::filesystem::path::format Synopsis enum format { native_format, generic_format, (since C++17) auto_format }; Determines how string representations of pathnames are interpreted by the constructors of std::filesystem::path that accept strings. Constants Defined in header <filesystem> Value Explanation native_format Native pathname format generic_format Generic pathname format auto_format Implementation-defined pathname format, auto-detected where possible Notes On POSIX systems,…
std::filesystem::path::filename – std::filesystem::path::filename Synopsis path filename() const; (since C++17) Returns the generic-format filename component of the path. Equivalent to relative_path().empty() ? path() : *–end(). Parameters (none) Return value The filename identified by the path. Exceptions (none) Example // Run this code #include <iostream> #include <filesystem> namespace fs = std::filesystem; int main() { std::cout << fs::path("/foo/bar.txt").filename()…
std::filesystem::path::extension – std::filesystem::path::extension Synopsis path extension() const; (since C++17) Returns the extension of the filename component of the generic-format view of *this. If the filename() component of the generic-format path contains a period (.), and is not one of the special filesystem elements dot or dot-dot, then the extension is the substring beginning at the…