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<p>The Filesystem library provides facilities for performing operations on file systems and their components, such a paths, regular files, and directories.
</p><p>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.
</p><p>Some functionality may not be provided by the implementation if the underlying file system does not support it.
</p><p>The behavior of the implementation may be different than described here in the presence of file-system races.
</p><p><br />
</p>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/path.html" title="cpp/experimental/fs/path"> <span class="t-lines"><span>path</span></span></a></div></div>
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<td> represents a path <br /> <span class="t-mark">(class)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_path&action=edit">[edit]</a></span>
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<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/filesystem_error.html" title="cpp/experimental/fs/filesystem error"> <span class="t-lines"><span>filesystem_error</span></span></a></div></div>
</td>
<td> an exception thrown on file system errors <br /> <span class="t-mark">(class)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_filesystem_error&action=edit">[edit]</a></span>
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<td> <div class="t-dsc-member-div"><div><a href="fs/directory_entry.html" title="cpp/experimental/fs/directory entry"> <span class="t-lines"><span>directory_entry</span></span></a></div></div>
</td>
<td> a directory entry <br /> <span class="t-mark">(class)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_directory_entry&action=edit">[edit]</a></span>
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<td> <div class="t-dsc-member-div"><div><a href="fs/directory_iterator.html" title="cpp/experimental/fs/directory iterator"> <span class="t-lines"><span>directory_iterator</span></span></a></div></div>
</td>
<td> an iterator to the contents of the directory <br /> <span class="t-mark">(class)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_directory_iterator&action=edit">[edit]</a></span>
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<td> <div class="t-dsc-member-div"><div><a href="fs/recursive_directory_iterator.html" title="cpp/experimental/fs/recursive directory iterator"> <span class="t-lines"><span>recursive_directory_iterator</span></span></a></div></div>
</td>
<td> an iterator to the contents of a directory and its subdirectories <br /> <span class="t-mark">(class)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_recursive_directory_iterator&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/file_type.html" title="cpp/experimental/fs/file type"> <span class="t-lines"><span>file_type</span></span></a></div></div>
</td>
<td> the type of a file <br /> <span class="t-mark">(enum)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_file_type&action=edit">[edit]</a></span>
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<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/perms.html" title="cpp/experimental/fs/perms"> <span class="t-lines"><span>perms</span></span></a></div></div>
</td>
<td> identifies file system permissions <br /> <span class="t-mark">(enum)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_perms&action=edit">[edit]</a></span>
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<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/file_status.html" title="cpp/experimental/fs/file status"> <span class="t-lines"><span>file_status</span></span></a></div></div>
</td>
<td> represents file type and permissions <br /> <span class="t-mark">(class)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_file_status&action=edit">[edit]</a></span>
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<td> <div class="t-dsc-member-div"><div><a href="fs/space_info.html" title="cpp/experimental/fs/space info"> <span class="t-lines"><span>space_info</span></span></a></div></div>
</td>
<td> information about free and available space on the filesystem <br /> <span class="t-mark">(class)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_space_info&action=edit">[edit]</a></span>
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<td> <div class="t-dsc-member-div"><div><a href="fs/copy_options.html" title="cpp/experimental/fs/copy options"> <span class="t-lines"><span>copy_options</span></span></a></div></div>
</td>
<td> specifies semantics of copy operations <br /> <span class="t-mark">(enum)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_copy_options&action=edit">[edit]</a></span>
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<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/directory_options.html" title="cpp/experimental/fs/directory options"> <span class="t-lines"><span>directory_options</span></span></a></div></div>
</td>
<td> options for iterating directory contents <br /> <span class="t-mark">(enum)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_directory_options&action=edit">[edit]</a></span>
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<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/file_time_type.html" title="cpp/experimental/fs/file time type"> <span class="t-lines"><span>file_time_type</span></span></a></div></div>
</td>
<td> represents file time values <br /> <span class="t-mark">(typedef)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_file_time_type&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/absolute.html" title="cpp/experimental/fs/absolute"> <span class="t-lines"><span>absolute</span></span></a></div></div>
</td>
<td> composes an absolute path <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_absolute&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/canonical.html" title="cpp/experimental/fs/canonical"> <span class="t-lines"><span>canonical</span></span></a></div></div>
</td>
<td> composes a canonical path <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_canonical&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/copy.html" title="cpp/experimental/fs/copy"> <span class="t-lines"><span>copy</span></span></a></div></div>
</td>
<td> copies files or directories <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_copy&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/copy_file.html" title="cpp/experimental/fs/copy file"> <span class="t-lines"><span>copy_file</span></span></a></div></div>
</td>
<td> copies file contents <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_copy_file&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/copy_symlink.html" title="cpp/experimental/fs/copy symlink"> <span class="t-lines"><span>copy_symlink</span></span></a></div></div>
</td>
<td> copies a symbolic link <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_copy_symlink&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/create_directory.html" title="cpp/experimental/fs/create directory"> <span class="t-lines"><span>create_directory</span><span>create_directories</span></span></a></div></div>
</td>
<td> creates new directory <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_create_directory&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/create_hard_link.html" title="cpp/experimental/fs/create hard link"> <span class="t-lines"><span>create_hard_link</span></span></a></div></div>
</td>
<td> creates a hard link <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_create_hard_link&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/create_symlink.html" title="cpp/experimental/fs/create symlink"> <span class="t-lines"><span>create_symlink</span><span>create_directory_symlink</span></span></a></div></div>
</td>
<td> creates a symbolic link <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_create_symlink&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/current_path.html" title="cpp/experimental/fs/current path"> <span class="t-lines"><span>current_path</span></span></a></div></div>
</td>
<td> return current working directory <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_current_path&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/exists.html" title="cpp/experimental/fs/exists"> <span class="t-lines"><span>exists</span></span></a></div></div>
</td>
<td> checks whether path refers to existing file system object <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_exists&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/equivalent.html" title="cpp/experimental/fs/equivalent"> <span class="t-lines"><span>equivalent</span></span></a></div></div>
</td>
<td> checks whether two paths refer to the same file system object <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_equivalent&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/file_size.html" title="cpp/experimental/fs/file size"> <span class="t-lines"><span>file_size</span></span></a></div></div>
</td>
<td> returns the size of a file <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_file_size&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/hard_link_count.html" title="cpp/experimental/fs/hard link count"> <span class="t-lines"><span>hard_link_count</span></span></a></div></div>
</td>
<td> returns the number of hard links referring to the specific file <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_hard_link_count&action=edit">[edit]</a></span>
</td></tr>
<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="File_types"> File types </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/is_block_file.html" title="cpp/experimental/fs/is block file"> <span class="t-lines"><span>is_block_file</span></span></a></div></div>
</td>
<td> checks whether the given path refers to block file <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_is_block_file&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/is_character_file.html" title="cpp/experimental/fs/is character file"> <span class="t-lines"><span>is_character_file</span></span></a></div></div>
</td>
<td> checks whether the given path refers to a character file <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_is_character_file&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/is_directory.html" title="cpp/experimental/fs/is directory"> <span class="t-lines"><span>is_directory</span></span></a></div></div>
</td>
<td> checks whether the given path refers to a directory <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_is_directory&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/is_empty.html" title="cpp/experimental/fs/is empty"> <span class="t-lines"><span>is_empty</span></span></a></div></div>
</td>
<td> checks whether the given path refers to an empty file or directory <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_is_empty&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/is_fifo.html" title="cpp/experimental/fs/is fifo"> <span class="t-lines"><span>is_fifo</span></span></a></div></div>
</td>
<td> checks whether the given path refers to a FIFO <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_is_fifo&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/is_other.html" title="cpp/experimental/fs/is other"> <span class="t-lines"><span>is_other</span></span></a></div></div>
</td>
<td> checks whether the argument refers to an <i>other</i> file <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_is_other&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/is_regular_file.html" title="cpp/experimental/fs/is regular file"> <span class="t-lines"><span>is_regular_file</span></span></a></div></div>
</td>
<td> checks whether the argument refers to a regular file <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_is_regular_file&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/is_socket.html" title="cpp/experimental/fs/is socket"> <span class="t-lines"><span>is_socket</span></span></a></div></div>
</td>
<td> checks whether the argument refers to a socket <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_is_socket&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/is_symlink.html" title="cpp/experimental/fs/is symlink"> <span class="t-lines"><span>is_symlink</span></span></a></div></div>
</td>
<td> checks whether the argument refers to a symbolic link <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_is_symlink&action=edit">[edit]</a></span>
</td></tr>
<a href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_last_write_time&action=edit&redlink=1" class="new" title="Template:cpp/experimental/fs/dsc last write time (page does not exist)">Template:cpp/experimental/fs/dsc last write time</a>
<a href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_read_symlink&action=edit&redlink=1" class="new" title="Template:cpp/experimental/fs/dsc read symlink (page does not exist)">Template:cpp/experimental/fs/dsc read symlink</a>
<a href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_remove&action=edit&redlink=1" class="new" title="Template:cpp/experimental/fs/dsc remove (page does not exist)">Template:cpp/experimental/fs/dsc remove</a>
<a href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_rename&action=edit&redlink=1" class="new" title="Template:cpp/experimental/fs/dsc rename (page does not exist)">Template:cpp/experimental/fs/dsc rename</a>
<a href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_resize_file&action=edit&redlink=1" class="new" title="Template:cpp/experimental/fs/dsc resize file (page does not exist)">Template:cpp/experimental/fs/dsc resize file</a>
<a href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_space&action=edit&redlink=1" class="new" title="Template:cpp/experimental/fs/dsc space (page does not exist)">Template:cpp/experimental/fs/dsc space</a>
<a href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_status&action=edit&redlink=1" class="new" title="Template:cpp/experimental/fs/dsc status (page does not exist)">Template:cpp/experimental/fs/dsc status</a>
<a href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_system_complete&action=edit&redlink=1" class="new" title="Template:cpp/experimental/fs/dsc system complete (page does not exist)">Template:cpp/experimental/fs/dsc system complete</a>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fs/temp_directory_path.html" title="cpp/experimental/fs/temp directory path"> <span class="t-lines"><span>temp_directory_path</span></span></a></div></div>
</td>
<td> returns a directory suitable for temporary files <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/experimental/fs/dsc_temp_directory_path&action=edit">[edit]</a></span>
</td></tr>
</table>
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