[gcc r11-8886] libstdc++: Document P1739R4 status [PR100139]

[Jonathan Wakely]

https://gcc.gnu.org/g:31433e154f5eecb17151d77b259b13d41c0b8e7c

commit r11-8886-g31433e154f5eecb17151d77b259b13d41c0b8e7c
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Thu Aug 19 11:44:57 2021 +0100

    libstdc++: Document P1739R4 status [PR100139]
    
    We should document the status of this unimplemented feature.
    
    Signed-off-by: Jonathan Wakely <jwakely@redhat.com>
    
    libstdc++-v3/ChangeLog:
    
            PR libstdc++/100139
            * doc/xml/manual/status_cxx2020.xml: Add P1739R4 to status table.
            * doc/html/manual/status.html: Regenerate.
    
    (cherry picked from commit 926d4a71c7e5a2f7d17a4f943d6e7fe9f1e3ba55)

Diff:
---
 libstdc++-v3/doc/html/manual/status.html       |  5 ++++-
 libstdc++-v3/doc/xml/manual/status_cxx2020.xml | 11 +++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/libstdc++-v3/doc/html/manual/status.html b/libstdc++-v3/doc/html/manual/status.html
index e3a86cac715..751d6035d9f 100644
--- a/libstdc++-v3/doc/html/manual/status.html
+++ b/libstdc++-v3/doc/html/manual/status.html
@@ -1688,7 +1688,10 @@ or any notes about the implementation.
       </td></tr><tr><td align="left"> Efficient access to std::basic_stringbuf's Buffer </td><td align="left">
         <a class="link" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p0408r7.pdf" target="_top">
         P0408R7 </a>
-      </td><td align="center"> 11 </td><td align="left"> </td></tr></tbody></table></div></div><br class="table-break" /><p>
+      </td><td align="center"> 11 </td><td align="left"> </td></tr><tr bgcolor="#C8B0B0"><td align="left"> Avoid template bloat for <code class="code">safe_ranges</code> in combination with ‘subrange-y’ view adaptors.</td><td align="left">
+        <a class="link" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2020/p1739r4.html" target="_top">
+        P1739R4 </a>
+      </td><td align="center"> </td><td align="left"> </td></tr></tbody></table></div></div><br class="table-break" /><p>
 Note 1: This feature is supported in older releases but the
 <code class="code">__cpp_lib</code> macro is not defined to the right value
 (or not defined at all) until the version shown in parentheses.
diff --git a/libstdc++-v3/doc/xml/manual/status_cxx2020.xml b/libstdc++-v3/doc/xml/manual/status_cxx2020.xml
index ca12d8023f1..45de79311a1 100644
--- a/libstdc++-v3/doc/xml/manual/status_cxx2020.xml
+++ b/libstdc++-v3/doc/xml/manual/status_cxx2020.xml
@@ -1437,6 +1437,17 @@ or any notes about the implementation.
       <entry />
     </row>
 
+    <row>
+      <?dbhtml bgcolor="#C8B0B0" ?>
+      <entry> Avoid template bloat for <code>safe_ranges</code> in combination with ‘subrange-y’ view adaptors.</entry>
+      <entry>
+        <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2020/p1739r4.html">
+        P1739R4 </link>
+      </entry>
+      <entry align="center"> </entry>
+      <entry />
+    </row>
+
   </tbody>
 </tgroup>
 </table>