Linux Manuals

std::filesystem::resize_file – std::filesystem::resize_file Synopsis Defined in header<filesystem> void resize_file(const std::filesystem::path &p, std::uintmax_t new_size); void resize_file(const std::filesystem::path &p, (since C++ 17) std::uintmax_t new_size, std::error_code &ec) noexcept; Changes the size of the regular file named by p as if by POSIX truncate: if the file size was previously larger than new_size, the remainder of the file is…

std::filesystem::rename – std::filesystem::rename Synopsis Defined in header<filesystem> void rename(const std::filesystem::path &old_p, const std::filesystem::path &new_p); void rename(const std::filesystem::path &old_p, (since C++ 17) const std::filesystem::path &new_p, std::error_code &ec) noexcept; Moves or renames the filesystem object identified by old_p to new_p as if by the POSIX rename: * If old_p is a non-directory file, then new_p must be…

std::filesystem::remove,std::filesystem::remove_all – std::filesystem::remove,std::filesystem::remove_all Synopsis Defined in header<filesystem> bool remove(const std::filesystem::path &p); (1)(since C++ 17) bool remove(const std::filesystem::path &p, std::error_code &ec) noexcept; std::uintmax_t remove_all(const std::filesystem::path &p); (2)(since C++ 17) std::uintmax_t remove_all(const std::filesystem::path &p, std::error_code &ec); 1) The file or empty directory identified by the path p is deleted as if by the POSIX remove. Symlinks are…

std::filesystem::relative,std::filesystem::proximate – std::filesystem::relative,std::filesystem::proximate Synopsis Defined in header<filesystem> path relative(const std::filesystem::path &p, (1)(since C++ 17) std::error_code &ec); path relative(const std::filesystem::path &p, const std::filesystem::path &base = std::filesystem::current_path()); path relative(const std::filesystem::path &p, (2)(since C++ 17) const std::filesystem::path &base, std::error_code &ec); path proximate(const std::filesystem::path &p, (3)(since C++ 17) std::error_code &ec); path proximate(const std::filesystem::path &p, const std::filesystem::path &base = std::filesystem::current_path());…

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

std::filesystem::recursive_directory_iterator::recursion_pending – std::filesystem::recursive_directory_iterator::recursion_pending Synopsis bool recursion_pending() const; (since C++17) Returns true if the next increment will cause the directory currently referred to by *this to be iterated into. This function returns true immediately after construction or an increment. Recursion can be disabled via disable_recursion_pending(). Parameters (none) Return value true if the next increment will iterate…

std::filesystem::recursive_directory_iterator::pop – std::filesystem::recursive_directory_iterator::pop Synopsis void pop(); (1)(since C++ 17) void pop(std::error_code &ec); (2)(since C++ 17) Moves the iterator one level up in the directory hierarchy. Invalidates all copies of the previous value of *this. If the parent directory is outside directory hierarchy that is iterated on (i.e. depth() == 0), sets *this to an end…

std::filesystem::recursive_directory_iterator::options – std::filesystem::recursive_directory_iterator::options Synopsis directory_options options() const; (since C++17) Returns the options that affect the directory iteration. The options can only be supplied when constructing the directory iterator. If the options argument was not supplied, returns options::none. Parameters (none) Return value The effective options that affect the directory iteration. Exceptions (none)

std::filesystem::recursive_directory_iterator::operator= – std::filesystem::recursive_directory_iterator::operator= Synopsis recursive_directory_iterator &operator=(const recursive_directory_iterator &other) = default; (since C++ 17) recursive_directory_iterator & operator=(recursive_directory_iterator &&other) = default; (since C++ 17) Assigns a recursive directory iterator. Parameters other – another directory iterator to assign Return value *this Exceptions (none)  This section is incomplete

std::filesystem::recursive_directory_iterator::operator*,std::filesystem::recursive_directory_iterator::operator-> – std::filesystem::recursive_directory_iterator::operator*,std::filesystem::recursive_directory_iterator::operator-> Synopsis const std::filesystem::directory_entry &operator*() const; (1)(since C++ 17) const std::filesystem::directory_entry * operator->() const; (2)(since C++ 17) 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…

std::filesystem::recursive_directory_iterator::disable_recursion_pending – std::filesystem::recursive_directory_iterator::disable_recursion_pending Synopsis void disable_recursion_pending(); (since C++ 17) Disables recursion to the currently referred subdirectory, if any. The call modifies the pending recursion flag on the iterator in such a way that the next time increment is called, the iterator will advance within the current directly even if it is currently referring to a…

std::filesystem::recursive_directory_iterator::depth – std::filesystem::recursive_directory_iterator::depth Synopsis int depth() const; (since C++ 17) Returns the number of directories from the starting directory to the currently iterated directory, i.e. the current depth of the directory hierarchy. The starting directory has depth of 0, its subdirectories have depth 1, etc. The behavior is undefined if *this is the end iterator….

std::filesystem::recursive_directory_iterator – std::filesystem::recursive_directory_iterator Synopsis Defined in header <filesystem> class recursive_directory_iterator; (since C++17) recursive_directory_iterator is an LegacyInputIterator that iterates over the directory_entry elements of a directory, and, recursively, over the entries of all subdirectories. The iteration order is unspecified, except that each directory entry is visited only once. By default, symlinks are not followed, but this…

std::filesystem::read_symlink – std::filesystem::read_symlink Synopsis Defined in header<filesystem> std::filesystem::path read_symlink(const std::filesystem::path &p); std::filesystem::path read_symlink(const std::filesystem::path &p, (since C++ 17) std::error_code &ec); If the path p refers to a symbolic link, returns a new path object which refers to the target of that symbolic link. It is an error if p does not refer to a symbolic…

std::filesystem::perms – std::filesystem::perms Synopsis Defined in header <filesystem> enum class perms; (since C++17) This type represents file access permissions. perms satisfies the requirements of BitmaskType (which means the bitwise operators operator&, operator|, operator^, operator~, operator&=, operator|=, and operator^= are defined for this type) Access permissions model POSIX_permission_bits, and any individual file permissions (as reported by…

std::filesystem::permissions – std::filesystem::permissions Synopsis Defined in header<filesystem> void permissions(const std::filesystem::path &p, std::filesystem::perms prms, std::filesystem::perm_options opts = perm_options::replace); void permissions(const std::filesystem::path &p, std::filesystem::perms prms, (since C++ 17) std::error_code &ec) noexcept; void permissions(const std::filesystem::path &p, std::filesystem::perms prms, std::filesystem::perm_options opts, std::error_code &ec); Changes access permissions of the file to which p resolves, as if by POSIX fchmodat. Symlinks…

std::filesystem::perm_options – std::filesystem::perm_options Synopsis Defined in header <filesystem> enum class perm_options { replace = /* unspecified */, add = /* unspecified */, (since C++17) remove = /* unspecified */, nofollow = /* unspecified */ }; This type represents available options that control the behavior of the function permissions(). perm_options satisfies the requirements of BitmaskType (which…

std::filesystem::path::swap – std::filesystem::path::swap Synopsis void swap(path &other) noexcept; (1)(since C++ 17) Swaps the contents (both native and generic format) of *this and other. Parameters other – another path to exchange the contents with Return value (none) Complexity Constant. See also                             swaps two paths swap(std::filesystem::path) (function)

std::filesystem::path::string,std::filesystem::path::wstring,std::filesystem::path::u8string,std::filesystem::path::u16string,std::filesystem::path::u32string – std::filesystem::path::string,std::filesystem::path::wstring,std::filesystem::path::u8string,std::filesystem::path::u16string,std::filesystem::path::u32string Synopsis template <class CharT, class Traits = std::char_traits<CharT>, class Alloc = std::allocator<CharT>> (1)(since C++ 17) std::basic_string<CharT, Traits, Alloc> string(const Alloc &a = Alloc()) const; std::string string() const; std::wstring wstring() const; std::u16string u16string() const; std::u32string u32string() const; (2)(since C++ 17) std::string u8string() const; (since C++ 17)(3)(until C++ 20) std::u8string u8string() const; (since C++…

std::filesystem::path::string,std::filesystem::path::wstring, – std::filesystem::path::string,std::filesystem::path::wstring, Synopsis                     std::filesystem::path::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> string(const Alloc &a = Alloc()) const; std::string string() const; std::wstring wstring() const; std::u16string u16string() const; std::u32string u32string() const; (2)(since(since std::string u8string() const; C++ 17) C++ 17)(3)(until C++ 20) std::u8string u8string() const; (since…