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<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="path.html" title="cpp/experimental/fs/path"><span class="t-lines"><span>filesystem::path</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="filesystem_error.html" title="cpp/experimental/fs/filesystem error"><span class="t-lines"><span>filesystem::filesystem_error</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="directory_entry.html" title="cpp/experimental/fs/directory entry"><span class="t-lines"><span>filesystem::directory_entry</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="directory_iterator.html" title="cpp/experimental/fs/directory iterator"><span class="t-lines"><span>filesystem::directory_iterator</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="recursive_directory_iterator.html" title="cpp/experimental/fs/recursive directory iterator"><span class="t-lines"><span>filesystem::recursive_directory_iterator</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="file_status.html" title="cpp/experimental/fs/file status"><span class="t-lines"><span>filesystem::file_status</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="space_info.html" title="cpp/experimental/fs/space info"><span class="t-lines"><span>filesystem::space_info</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="file_type.html" title="cpp/experimental/fs/file type"><span class="t-lines"><span>filesystem::file_type</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><strong class="selflink"><span class="t-lines"><span>filesystem::perms</span></span></strong></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="copy_options.html" title="cpp/experimental/fs/copy options"><span class="t-lines"><span>filesystem::copy_options</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="directory_options.html" title="cpp/experimental/fs/directory options"><span class="t-lines"><span>filesystem::directory_options</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="file_time_type.html" title="cpp/experimental/fs/file time type"><span class="t-lines"><span>filesystem::file_time_type</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Functions</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="absolute.html" title="cpp/experimental/fs/absolute"><span class="t-lines"><span>filesystem::absolute<br />filesystem::system_complete</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="canonical.html" title="cpp/experimental/fs/canonical"><span class="t-lines"><span>filesystem::canonical</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="copy.html" title="cpp/experimental/fs/copy"><span class="t-lines"><span>filesystem::copy</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="copy_file.html" title="cpp/experimental/fs/copy file"><span class="t-lines"><span>filesystem::copy_file</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="copy_symlink.html" title="cpp/experimental/fs/copy symlink"><span class="t-lines"><span>filesystem::copy_symlink</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="create_directory.html" title="cpp/experimental/fs/create directory"><span class="t-lines"><span>filesystem::create_directory<br />filesystem::create_directories</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="create_hard_link.html" title="cpp/experimental/fs/create hard link"><span class="t-lines"><span>filesystem::create_hard_link</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="create_symlink.html" title="cpp/experimental/fs/create symlink"><span class="t-lines"><span>filesystem::create_symlink<br />filesystem::create_directory_symlink</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="current_path.html" title="cpp/experimental/fs/current path"><span class="t-lines"><span>filesystem::current_path</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="exists.html" title="cpp/experimental/fs/exists"><span class="t-lines"><span>filesystem::exists</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="equivalent.html" title="cpp/experimental/fs/equivalent"><span class="t-lines"><span>filesystem::equivalent</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="file_size.html" title="cpp/experimental/fs/file size"><span class="t-lines"><span>filesystem::file_size</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="hard_link_count.html" title="cpp/experimental/fs/hard link count"><span class="t-lines"><span>filesystem::hard_link_count</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="last_write_time.html" title="cpp/experimental/fs/last write time"><span class="t-lines"><span>filesystem::last_write_time</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="permissions.html" title="cpp/experimental/fs/permissions"><span class="t-lines"><span>filesystem::permissions</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="read_symlink.html" title="cpp/experimental/fs/read symlink"><span class="t-lines"><span>filesystem::read_symlink</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="remove.html" title="cpp/experimental/fs/remove"><span class="t-lines"><span>filesystem::remove<br />filesystem::remove_all</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="rename.html" title="cpp/experimental/fs/rename"><span class="t-lines"><span>filesystem::rename</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="resize_file.html" title="cpp/experimental/fs/resize file"><span class="t-lines"><span>filesystem::resize_file</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="space.html" title="cpp/experimental/fs/space"><span class="t-lines"><span>filesystem::space</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="status.html" title="cpp/experimental/fs/status"><span class="t-lines"><span>filesystem::status<br />filesystem::symlink_status</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="temp_directory_path.html" title="cpp/experimental/fs/temp directory path"><span class="t-lines"><span>filesystem::temp_directory_path</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5">File types</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="is_block_file.html" title="cpp/experimental/fs/is block file"><span class="t-lines"><span>filesystem::is_block_file</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="is_character_file.html" title="cpp/experimental/fs/is character file"><span class="t-lines"><span>filesystem::is_character_file</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="is_directory.html" title="cpp/experimental/fs/is directory"><span class="t-lines"><span>filesystem::is_directory</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="is_empty.html" title="cpp/experimental/fs/is empty"><span class="t-lines"><span>filesystem::is_empty</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="status_known.html" title="cpp/experimental/fs/status known"><span class="t-lines"><span>filesystem::status_known</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="is_fifo.html" title="cpp/experimental/fs/is fifo"><span class="t-lines"><span>filesystem::is_fifo</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="is_other.html" title="cpp/experimental/fs/is other"><span class="t-lines"><span>filesystem::is_other</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="is_regular_file.html" title="cpp/experimental/fs/is regular file"><span class="t-lines"><span>filesystem::is_regular_file</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="is_socket.html" title="cpp/experimental/fs/is socket"><span class="t-lines"><span>filesystem::is_socket</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="is_symlink.html" title="cpp/experimental/fs/is symlink"><span class="t-lines"><span>filesystem::is_symlink</span></span></a></div></div></td></tr>
</table></div></td></tr>
</table></div><div><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/navbar_content&action=edit">[edit]</a></span></div></div></div></div><div class="t-navbar-sep"> </div></div>
<table class="t-dcl-begin"><tbody>
<tr class="t-dsc-header">
<td> <div>Defined in header <code><a href="../../header/experimental/filesystem.html" title="cpp/header/experimental/filesystem"><experimental/filesystem></a></code>
</div></td>
<td></td>
<td></td>
</tr>
<tr class="t-dcl t-since-fs_ts">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw2">enum</span> <span class="kw1">class</span> perms<span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td> <span class="t-mark-rev t-since-fs-ts t-mark-ts">(filesystem TS)</span> </td>
</tr>
<tr class="t-dcl-sep"><td></td><td></td><td></td></tr>
</tbody></table>
<p>This type represents file access permissions. <code>perms</code> satisfies the requirements of <a href="../../concept/BitmaskType.html" title="cpp/concept/BitmaskType"><code>BitmaskType</code></a> (which means the bitwise operators <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy3">&</span></span></span>, <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy3">|</span></span></span>, <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy3">^</span></span></span>, <span class="t-c"><span class="mw-geshi cpp source-cpp">operator~</span></span>, <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy3">&</span><span class="sy1">=</span></span></span>, <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy3">|</span><span class="sy1">=</span></span></span>, and <span class="t-c"><span class="mw-geshi cpp source-cpp">operator<span class="sy3">^</span><span class="sy1">=</span></span></span> are defined for this type)
</p><p>Access permissions model <a rel="nofollow" class="external text" href="http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sys_stat.h.html">POSIX permission bits</a>, and any individual file permissions (as reported by <a href="status.html" title="cpp/experimental/fs/status">status</a>) are a combination of some of the following bits:
</p>
<table id="toc" class="toc"><tr><td><div id="toctitle"><h2>Contents</h2></div>
<ul>
<li class="toclevel-1 tocsection-1"><a href="perms.html#Member_constants"><span class="tocnumber">1</span> <span class="toctext">Member constants</span></a></li>
<li class="toclevel-1 tocsection-2"><a href="perms.html#Notes"><span class="tocnumber">2</span> <span class="toctext">Notes</span></a></li>
<li class="toclevel-1 tocsection-3"><a href="perms.html#Example"><span class="tocnumber">3</span> <span class="toctext">Example</span></a></li>
<li class="toclevel-1 tocsection-4"><a href="perms.html#See_also"><span class="tocnumber">4</span> <span class="toctext">See also</span></a></li>
</ul>
</td></tr></table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/experimental/fs/perms&action=edit&section=1" title="Edit section: Member constants">edit</a>]</span> <span class="mw-headline" id="Member_constants">Member constants</span></h3>
<table class="wikitable" style="text-align:left; font-size:85%; max-width:90em;">
<tr>
<th> Member constant
</th>
<th> Value (octal)
</th>
<th> POSIX equivalent
</th>
<th> Meaning
</th></tr>
<tr>
<td> <code>none</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">0</span></span></span>
</td>
<td>
</td>
<td> no permission bits are set
</td></tr>
<tr>
<td> <code>owner_read</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu8">0400</span></span></span>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">S_IRUSR</span></span>
</td>
<td> File owner has read permission
</td></tr>
<tr>
<td> <code>owner_write</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu8">0200</span></span></span>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">S_IWUSR</span></span>
</td>
<td> File owner has write permission
</td></tr>
<tr>
<td> <code>owner_exec</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu8">0100</span></span></span>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">S_IXUSR</span></span>
</td>
<td> File owner has execute/search permission
</td></tr>
<tr>
<td> <code>owner_all</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu8">0700</span></span></span>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">S_IRWXU</span></span>
</td>
<td> File owner has read, write, and execute/search permissions
<p>Equivalent to <span class="t-c"><span class="mw-geshi cpp source-cpp">owner_read <span class="sy3">|</span> owner_write <span class="sy3">|</span> owner_exec</span></span>
</p>
</td></tr>
<tr>
<td> <code>group_read</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu8">040</span></span></span>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">S_IRGRP</span></span>
</td>
<td> The file's user group has read permission
</td></tr>
<tr>
<td> <code>group_write</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu8">020</span></span></span>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">S_IWGRP</span></span>
</td>
<td> The file's user group has write permission
</td></tr>
<tr>
<td> <code>group_exec</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu8">010</span></span></span>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">S_IXGRP</span></span>
</td>
<td> The file's user group has execute/search permission
</td></tr>
<tr>
<td> <code>group_all</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu8">070</span></span></span>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">S_IRWXG</span></span>
</td>
<td> The file's user group has read, write, and execute/search permissions
<p>Equivalent to <span class="t-c"><span class="mw-geshi cpp source-cpp">group_read <span class="sy3">|</span> group_write <span class="sy3">|</span> group_exec</span></span>
</p>
</td></tr>
<tr>
<td> <code>others_read</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu8">04</span></span></span>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">S_IROTH</span></span>
</td>
<td> Other users have read permission
</td></tr>
<tr>
<td> <code>others_write</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu8">02</span></span></span>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">S_IWOTH</span></span>
</td>
<td> Other users have write permission
</td></tr>
<tr>
<td> <code>others_exec</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu8">01</span></span></span>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">S_IXOTH</span></span>
</td>
<td> Other users have execute/search permission
</td></tr>
<tr>
<td> <code>others_all</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu8">07</span></span></span>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">S_IRWXO</span></span>
</td>
<td> Other users have read, write, and execute/search permissions
<p>Equivalent to <span class="t-c"><span class="mw-geshi cpp source-cpp">others_read <span class="sy3">|</span> others_write <span class="sy3">|</span> others_exec</span></span>
</p>
</td></tr>
<tr>
<td> <code>all</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu8">0777</span></span></span>
</td>
<td>
</td>
<td> All users have read, write, and execute/search permissions
<p>Equivalent to <span class="t-c"><span class="mw-geshi cpp source-cpp">owner_all <span class="sy3">|</span> group_all <span class="sy3">|</span> others_all</span></span>
</p>
</td></tr>
<tr>
<td> <code>set_uid</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu8">04000</span></span></span>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">S_ISUID</span></span>
</td>
<td> Set user ID to file owner user ID on execution
</td></tr>
<tr>
<td> <code>set_gid</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu8">02000</span></span></span>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">S_ISGID</span></span>
</td>
<td> Set group ID to file's user group ID on execution
</td></tr>
<tr>
<td> <code>sticky_bit</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu8">01000</span></span></span>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp">S_ISVTX</span></span>
</td>
<td> Implementation-defined meaning, but POSIX XSI specifies that when set on a directory, only file owners may delete files even if the directory is writeable to others (used with <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">/</span>tmp</span></span>)
</td></tr>
<tr>
<td> <code>mask</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu8">07777</span></span></span>
</td>
<td>
</td>
<td> All valid permission bits.
<p>Equivalent to <span class="t-c"><span class="mw-geshi cpp source-cpp">all <span class="sy3">|</span> set_uid <span class="sy3">|</span> set_gid <span class="sy3">|</span> sticky_bit</span></span>
</p>
</td></tr></table>
<p>Additionally, the following constants of this type are defined, which do not represent permissions:
</p>
<table class="wikitable" style="text-align:left; font-size:85%; max-width:90em;">
<tr>
<th> Member constant
</th>
<th> Value (hex)
</th>
<th> Meaning
</th></tr>
<tr>
<td> <code>unknown</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu12">0xFFFF</span></span></span>
</td>
<td> Unknown permissions (e.g. when <a href="file_status.html" title="cpp/experimental/fs/file status">file_status</a> is created without permissions)
</td></tr>
<tr>
<td> <code>add_perms</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu12">0x10000</span></span></span>
</td>
<td> Control bit that instructs <a href="permissions.html" title="cpp/experimental/fs/permissions">permissions</a> to add, but not clear permission bits.
</td></tr>
<tr>
<td> <code>remove_perms</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu12">0x20000</span></span></span>
</td>
<td> Control bit that instructs <a href="permissions.html" title="cpp/experimental/fs/permissions">permissions</a> to clear, but not add permission bits
</td></tr>
<tr>
<td> <code>resolve_symlinks</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu12">0x40000</span></span></span>
</td>
<td> Control bit that instructs <a href="permissions.html" title="cpp/experimental/fs/permissions">permissions</a> to resolve symlinks
</td></tr></table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/experimental/fs/perms&action=edit&section=2" title="Edit section: Notes">edit</a>]</span> <span class="mw-headline" id="Notes">Notes</span></h3>
<p>Permissions may not necessarily be implemented as bits, but they are treated that way conceptually.
</p><p>Some permission bits may be ignored on some systems, and changing some bits may automatically change others (e.g. on platforms without owner/group/all distinction, setting any of the three write bits set all three)
</p>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/experimental/fs/perms&action=edit&section=3" title="Edit section: Example">edit</a>]</span> <span class="mw-headline" id="Example">Example</span></h3>
<div class="t-example"><div class="t-example-live-link"><div class="coliru-btn coliru-btn-run-init">Run this code</div></div>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="co2">#include <fstream></span>
<span class="co2">#include <bitset></span>
<span class="co2">#include <iostream></span>
<span class="co2">#include <experimental/filesystem></span>
<span class="kw1">namespace</span> fs <span class="sy1">=</span> std<span class="sy4">::</span><span class="me2">experimental</span><span class="sy4">::</span><span class="me2">filesystem</span><span class="sy4">;</span>
 
<span class="kw4">void</span> demo_perms<span class="br0">(</span>fs<span class="sy4">::</span><span class="me2">perms</span> p<span class="br0">)</span>
<span class="br0">{</span>
<a href="../../io/cout.html"><span class="kw1481">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="br0">(</span>p <span class="sy3">&</span> fs<span class="sy4">::</span><span class="me2">perms</span><span class="sy4">::</span><span class="me2">owner_read</span> <span class="sy4">?</span> <span class="st0">"r"</span> <span class="sy4">:</span> <span class="st0">"-"</span><span class="br0">)</span>
<span class="sy1"><<</span> <span class="br0">(</span>p <span class="sy3">&</span> fs<span class="sy4">::</span><span class="me2">perms</span><span class="sy4">::</span><span class="me2">owner_write</span> <span class="sy4">?</span> <span class="st0">"w"</span> <span class="sy4">:</span> <span class="st0">"-"</span><span class="br0">)</span>
<span class="sy1"><<</span> <span class="br0">(</span>p <span class="sy3">&</span> fs<span class="sy4">::</span><span class="me2">perms</span><span class="sy4">::</span><span class="me2">owner_exec</span> <span class="sy4">?</span> <span class="st0">"x"</span> <span class="sy4">:</span> <span class="st0">"-"</span><span class="br0">)</span>
<span class="sy1"><<</span> <span class="br0">(</span>p <span class="sy3">&</span> fs<span class="sy4">::</span><span class="me2">perms</span><span class="sy4">::</span><span class="me2">group_read</span> <span class="sy4">?</span> <span class="st0">"r"</span> <span class="sy4">:</span> <span class="st0">"-"</span><span class="br0">)</span>
<span class="sy1"><<</span> <span class="br0">(</span>p <span class="sy3">&</span> fs<span class="sy4">::</span><span class="me2">perms</span><span class="sy4">::</span><span class="me2">group_write</span> <span class="sy4">?</span> <span class="st0">"w"</span> <span class="sy4">:</span> <span class="st0">"-"</span><span class="br0">)</span>
<span class="sy1"><<</span> <span class="br0">(</span>p <span class="sy3">&</span> fs<span class="sy4">::</span><span class="me2">perms</span><span class="sy4">::</span><span class="me2">group_exec</span> <span class="sy4">?</span> <span class="st0">"x"</span> <span class="sy4">:</span> <span class="st0">"-"</span><span class="br0">)</span>
<span class="sy1"><<</span> <span class="br0">(</span>p <span class="sy3">&</span> fs<span class="sy4">::</span><span class="me2">perms</span><span class="sy4">::</span><span class="me2">others_read</span> <span class="sy4">?</span> <span class="st0">"r"</span> <span class="sy4">:</span> <span class="st0">"-"</span><span class="br0">)</span>
<span class="sy1"><<</span> <span class="br0">(</span>p <span class="sy3">&</span> fs<span class="sy4">::</span><span class="me2">perms</span><span class="sy4">::</span><span class="me2">others_write</span> <span class="sy4">?</span> <span class="st0">"w"</span> <span class="sy4">:</span> <span class="st0">"-"</span><span class="br0">)</span>
<span class="sy1"><<</span> <span class="br0">(</span>p <span class="sy3">&</span> fs<span class="sy4">::</span><span class="me2">perms</span><span class="sy4">::</span><span class="me2">others_exec</span> <span class="sy4">?</span> <span class="st0">"x"</span> <span class="sy4">:</span> <span class="st0">"-"</span><span class="br0">)</span> <span class="sy1"><<</span> <span class="st0">'<span class="es1">\n</span>'</span><span class="sy4">;</span>
<span class="br0">}</span>
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
<a href="../../io/basic_ofstream.html"><span class="kw1456">std::<span class="me2">ofstream</span></span></a><span class="br0">(</span><span class="st0">"test.txt"</span><span class="br0">)</span><span class="sy4">;</span> <span class="co1">// create file</span>
 
<a href="../../io/cout.html"><span class="kw1481">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">"Created file with permissions: "</span><span class="sy4">;</span>
demo_perms<span class="br0">(</span>fs<span class="sy4">::</span><span class="me2">status</span><span class="br0">(</span><span class="st0">"test.txt"</span><span class="br0">)</span>.<span class="me1">permissions</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
 
fs<span class="sy4">::</span><span class="me2">permissions</span><span class="br0">(</span><span class="st0">"test.txt"</span>, fs<span class="sy4">::</span><span class="me2">perms</span><span class="sy4">::</span><span class="me2">add_perms</span> <span class="sy3">|</span>
fs<span class="sy4">::</span><span class="me2">perms</span><span class="sy4">::</span><span class="me2">owner_all</span> <span class="sy3">|</span> fs<span class="sy4">::</span><span class="me2">perms</span><span class="sy4">::</span><span class="me2">group_all</span><span class="br0">)</span><span class="sy4">;</span>
 
<a href="../../io/cout.html"><span class="kw1481">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">"After adding o+rwx and g+wrx: "</span><span class="sy4">;</span>
demo_perms<span class="br0">(</span>fs<span class="sy4">::</span><span class="me2">status</span><span class="br0">(</span><span class="st0">"test.txt"</span><span class="br0">)</span>.<span class="me1">permissions</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
 
fs<span class="sy4">::</span><span class="me2">remove</span><span class="br0">(</span><span class="st0">"test.txt"</span><span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<p>Possible output:
</p>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="text source-text"><pre class="de1">Created file with permissions: rw-r--r--
After adding o+rwx and g+wrx: rwxrwxr--</pre></div></div>
</div>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/experimental/fs/perms&action=edit&section=4" title="Edit section: See also">edit</a>]</span> <span class="mw-headline" id="See_also">See also</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="status.html" title="cpp/experimental/fs/status"> <span class="t-lines"><span>status</span><span>symlink_status</span></span></a></div></div>
</td>
<td> determines file attributes<br />determines file attributes, checking the symlink target <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_status&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="permissions.html" title="cpp/experimental/fs/permissions"> <span class="t-lines"><span>permissions</span></span></a></div></div>
</td>
<td> modifies file access permissions <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_permissions&action=edit">[edit]</a></span>
</td></tr>
</table>
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