[gcc/devel/omp/gcc-9] Backport libstdc++ documentation updates from mainline

[Tobias Burnus]

https://gcc.gnu.org/g:284da72604a05eb08437fd3c4911800a5b37a606

commit 284da72604a05eb08437fd3c4911800a5b37a606
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Thu May 30 11:34:44 2019 +0100

    Backport libstdc++ documentation updates from mainline
    
    	* doc/xml/manual/status_cxx2017.xml: Fix typo in documentation of
    	implementation-defined support for [fs.conform.9945].
    	* doc/xml/manual/status_cxx2020.xml: Add feature-test macro for
    	P0811R3. Change status of P1353R0.
    	* doc/html/*: Regenerate.
    
    From-SVN: r271775

Diff:
---
 libstdc++-v3/ChangeLog                         |  8 ++++++++
 libstdc++-v3/doc/html/manual/status.html       | 10 +++++++---
 libstdc++-v3/doc/xml/manual/status_cxx2017.xml |  2 +-
 libstdc++-v3/doc/xml/manual/status_cxx2020.xml |  5 ++---
 4 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 11d064a..48cc1d8 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,11 @@
+2019-05-30  Jonathan Wakely  <jwakely@redhat.com>
+
+	* doc/xml/manual/status_cxx2017.xml: Fix typo in documentation of
+	implementation-defined support for [fs.conform.9945].
+	* doc/xml/manual/status_cxx2020.xml: Add feature-test macro for
+	P0811R3. Change status of P1353R0.
+	* doc/html/*: Regenerate.
+
 2019-05-28  Jonathan Wakely  <jwakely@redhat.com>
 
 	Backport from mainline
diff --git a/libstdc++-v3/doc/html/manual/status.html b/libstdc++-v3/doc/html/manual/status.html
index fdd175f..8137d59 100644
--- a/libstdc++-v3/doc/html/manual/status.html
+++ b/libstdc++-v3/doc/html/manual/status.html
@@ -978,7 +978,7 @@ and test for <code class="code">__STDCPP_MATH_SPEC_FUNCS__ >= 201003L</code>.
    </p><p>
       <span class="emphasis"><em>30.10.2.1 [fs.conform.9945]</em></span>
       The behavior of the filesystem library implementation will depend on
-      the target operating system. Some features will not be not supported
+      the target operating system. Some features will not be supported
       on some targets.
    </p><p>
       <span class="emphasis"><em>30.10.5 [fs.filesystem.syn]</em></span>
@@ -1328,11 +1328,15 @@ Feature-testing recommendations for C++</a>.
         <a class="link" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p1285r0.pdf" target="_top">
 	P1285R0
 	</a>
-      </td><td align="center"> </td><td align="left">Â </td></tr><tr bgcolor="#B0B0B0"><td align="left">  Missing feature test macros </td><td align="left">
+      </td><td align="center"> </td><td align="left">Â </td></tr><tr><td align="left">  Well-behaved interpolation for numbers and pointers </td><td align="left">
+        <a class="link" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p0811r3.html" target="_top">
+	P0811R3
+	</a>
+      </td><td align="center"> 9.1 </td><td align="left"> <code class="code">__cpp_lib_interpolate >= 201902L</code> </td></tr><tr><td align="left">  Missing feature test macros </td><td align="left">
         <a class="link" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p1353r0.html" target="_top">
 	P1353R0
 	</a>
-      </td><td align="center"> Partial </td><td align="left">Â </td></tr></tbody></table></div></div><br class="table-break" /><p>
+      </td><td align="center"> 9.1 </td><td align="left">Â </td></tr></tbody></table></div></div><br class="table-break" /><p>
 Note 1: The changes in the proposal either do not affect the code in libstdc++,
 or the changes are not required for conformance.
 </p><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="iso.2020.specific"></a>Implementation Specific Behavior</h4></div></div></div><p>For behaviour which is also specified by previous standards,
diff --git a/libstdc++-v3/doc/xml/manual/status_cxx2017.xml b/libstdc++-v3/doc/xml/manual/status_cxx2017.xml
index 73403ef..9f98da5 100644
--- a/libstdc++-v3/doc/xml/manual/status_cxx2017.xml
+++ b/libstdc++-v3/doc/xml/manual/status_cxx2017.xml
@@ -1117,7 +1117,7 @@ and test for <code>__STDCPP_MATH_SPEC_FUNCS__ >= 201003L</code>.
    <para>
       <emphasis>30.10.2.1 [fs.conform.9945]</emphasis>
       The behavior of the filesystem library implementation will depend on
-      the target operating system. Some features will not be not supported
+      the target operating system. Some features will not be supported
       on some targets.
    </para>
 
diff --git a/libstdc++-v3/doc/xml/manual/status_cxx2020.xml b/libstdc++-v3/doc/xml/manual/status_cxx2020.xml
index 5cdd222..8da740b 100644
--- a/libstdc++-v3/doc/xml/manual/status_cxx2020.xml
+++ b/libstdc++-v3/doc/xml/manual/status_cxx2020.xml
@@ -941,18 +941,17 @@ Feature-testing recommendations for C++</link>.
 	</link>
       </entry>
       <entry align="center"> 9.1 </entry>
-      <entry />
+      <entry> <code>__cpp_lib_interpolate >= 201902L</code> </entry>
     </row>
 
     <row>
-      <?dbhtml bgcolor="#B0B0B0" ?>
       <entry>  Missing feature test macros </entry>
       <entry>
         <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p1353r0.html">
 	P1353R0
 	</link>
       </entry>
-      <entry align="center"> Partial </entry>
+      <entry align="center"> 9.1 </entry>
       <entry />
     </row>
   </tbody>