Filesystem library

 

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Filesystem library

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The Filesystem library provides facilities for performing operations on file systems and their components, such a paths, regular files, and directories.

The Filesystem library currently is described not in the C++ standard, but in separate Technical Specification. It is implementation-defined whether the Filesystem library is provided.

Some functionality may not be provided by the implementation if the underlying file system does not support it.

The behavior of the implementation may be different than described here in the presence of file-system races.

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path	represents a path (class)
filesystem_error	an exception thrown on file system errors (class)
directory_entry	a directory entry (class)
directory_iterator	an iterator to the contents of the directory (class)
recursive_directory_iterator	an iterator to the contents of a directory and its subdirectories (class)
file_type	the type of a file (enum)
perms	identifies file system permissions (enum)
file_status	represents file type and permissions (class)
space_info	information about free and available space on the filesystem (class)
copy_options	specifies semantics of copy operations (enum)
directory_options	options for iterating directory contents (enum)
file_time_type	represents file time values (typedef)
absolute	composes an absolute path (function)
canonical	composes a canonical path (function)
copy	copies files or directories (function)
copy_file	copies file contents (function)
copy_symlink	copies a symbolic link (function)
create_directorycreate_directories	creates new directory (function)
create_hard_link	creates a hard link (function)
create_symlinkcreate_directory_symlink	creates a symbolic link (function)
current_path	return current working directory (function)
exists	checks whether path refers to existing file system object (function)
equivalent	checks whether two paths refer to the same file system object (function)
file_size	returns the size of a file (function)
hard_link_count	returns the number of hard links referring to the specific file (function)
File types
is_block_file	checks whether the given path refers to block file (function)
is_character_file	checks whether the given path refers to a character file (function)
is_directory	checks whether the given path refers to a directory (function)
is_empty	checks whether the given path refers to an empty file or directory (function)
is_fifo	checks whether the given path refers to a FIFO (function)
is_other	checks whether the argument refers to an other file (function)
is_regular_file	checks whether the argument refers to a regular file (function)
is_socket	checks whether the argument refers to a socket (function)
is_symlink	checks whether the argument refers to a symbolic link (function)
temp_directory_path	returns a directory suitable for temporary files (function)