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libstdc++: Document missing implementation defined behavior for std::filesystem. 

libstdc++-v3/ChangeLog:

	* doc/html/manual/status.html: Regenerate the file.
	* doc/xml/manual/status_cxx2017.xml: Addd more entires.

Reviewed-by: Jonathan Wakely <jwakely@redhat.com>
Signed-off-by: Tomasz Kamiński <tkaminsk@redhat.com>
This commit is contained in:
Tomasz Kamiński 2025-09-05 13:16:40 +02:00
parent e3d14112b2
commit d6c370b8e9
2 changed files with 36 additions and 5 deletions
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18
libstdc++-v3/doc/html/manual/status.html
View File

@ -1123,7 +1123,8 @@ since C++14 and the implementation is complete.
The effect of calling the mathematical special functions with large
inputs should be documented here.
</p><p>
<span class="emphasis"><em>30.10.2.1 [fs.conform.9945]</em></span>
<span class="emphasis"><em>30.10.2.1 [fs.conform.9945]</em></span>,
<span class="emphasis"><em>30.10.2.2 [fs.conform.os]</em></span>
The behavior of the filesystem library implementation will depend on
the target operating system. Some features will not be supported
on some targets. Symbolic links and file permissions
@ -1159,7 +1160,20 @@ since C++14 and the implementation is complete.
Specifically, it is not possible to rename a directory to replace another
directory (POSIX requires that to work if the directory being
replaced is empty).
</p><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="iso.2017.par2ts"></a>Parallelism 2 TS</h5></div></div></div><p>
</p><p>
<span class="emphasis"><em>30.10.29.2 [fs.enum.file_type]</em></span>,
<span class="emphasis"><em>30.10.34.3 [fs.op.copy]</em></span>,
<span class="emphasis"><em>30.10.34.35 [fs.op.status]</em></span>
No additional file types are supported, and there are no
implementation-defined enumerators in
<code class="code">std::filesystem::file_type</code>.
</p><p>
<span class="emphasis"><em>30.10.32 [fs.class.directory_iterator]</em></span>,
<span class="emphasis"><em>30.10.33 [fs.class.rec.dir.itr]</em></span>
Any directory-like file types supported by
<code class="code">opendir</code>/<code class="code">readdir</code>
(or <code class="code">_wopendir</code>/<code class="code">_wreaddir</code> on Windows).
</p><div class="section"><div class="titlepage"><div><div><h5 class="title"><a id="iso.2017.par2ts"></a>Parallelism 2 TS</h5></div></div></div><p>
<span class="emphasis"><em>9.3 [parallel.simd.abi]</em></span>
<code class="code">max_fixed_size&lt;T&gt;</code> is 32, except when targetting
AVX512BW and <code class="code">sizeof(T)</code> is 1.

23
libstdc++-v3/doc/xml/manual/status_cxx2017.xml
View File

@ -3003,7 +3003,8 @@ since C++14 and the implementation is complete.
</para>
<para>
<emphasis>30.10.2.1 [fs.conform.9945]</emphasis>
<emphasis>30.10.2.1 [fs.conform.9945]</emphasis>,
<emphasis>30.10.2.2 [fs.conform.os]</emphasis>
The behavior of the filesystem library implementation will depend on
the target operating system. Some features will not be supported
on some targets. Symbolic links and file permissions
@ -3040,7 +3041,7 @@ since C++14 and the implementation is complete.
If <code>!is_regular_file(p)</code>, an error is reported.
</para>
<para>
<para>
<emphasis>30.10.15.32 [fs.op.rename]</emphasis>
On Windows, <code>filesystem::rename</code>
is implemented by calling <code>MoveFileExW</code> and so
@ -3049,8 +3050,24 @@ since C++14 and the implementation is complete.
Specifically, it is not possible to rename a directory to replace another
directory (POSIX requires that to work if the directory being
replaced is empty).
</para>
</para>
<para>
<emphasis>30.10.29.2 [fs.enum.file_type]</emphasis>,
<emphasis>30.10.34.3 [fs.op.copy]</emphasis>,
<emphasis>30.10.34.35 [fs.op.status]</emphasis>
No additional file types are supported, and there are no
implementation-defined enumerators in
<code>std::filesystem::file_type</code>.
</para>
<para>
<emphasis>30.10.32 [fs.class.directory_iterator]</emphasis>,
<emphasis>30.10.33 [fs.class.rec.dir.itr]</emphasis>
Any directory-like file types supported by
<code>opendir</code>/<code>readdir</code>
(or <code>_wopendir</code>/<code>_wreaddir</code> on Windows).
</para>
<section xml:id="iso.2017.par2ts" xreflabel="Implementation Specific Behavior of the Parallelism 2 TS"><info><title>Parallelism 2 TS</title></info>