OpenE2K/gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Add missing feature test macro to C++17 status table

Browse Source 
* doc/xml/manual/status_cxx2017.xml: Add feature test macro for
	P0040R3.
	* doc/html/*: Regenerate.

From-SVN: r271571
This commit is contained in:
Jonathan Wakely 2019-05-23 17:01:18 +01:00 committed by Jonathan Wakely
parent 5fa3b3cb46
commit 1a4f7c1b05
4 changed files with 9 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
libstdc++-v3/ChangeLog
View File

@ -1,5 +1,9 @@
2019-05-23 Jonathan Wakely <jwakely@redhat.com>
* doc/xml/manual/status_cxx2017.xml: Add feature test macro for
P0040R3.
* doc/html/*: Regenerate.
* include/experimental/any (__any_caster): Use RTTI if comparing
addresses fails, to support non-unique addresses in shared libraries.
* include/std/any (__any_caster): Likewise.

6
libstdc++-v3/doc/html/manual/memory.html
View File

@ -541,7 +541,7 @@ not be conforming for <code class="classname">shared_ptr</code> to have an
extra template parameter, even if it had a default value. The
available policies are:
</p><div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><p>
<code class="constant">_S_Atomic</code>
<code class="constant">_S_atomic</code>
</p><p>
Selected when GCC supports a builtin atomic compare-and-swap operation
on the target processor (see <a class="link" href="http://gcc.gnu.org/onlinedocs/gcc/_005f_005fatomic-Builtins.html" target="_top">Atomic
@ -549,13 +549,13 @@ Builtins</a>.) The reference counts are maintained using a lock-free
algorithm and GCC's atomic builtins, which provide the required memory
synchronisation.
</p></li><li class="listitem"><p>
<code class="constant">_S_Mutex</code>
<code class="constant">_S_mutex</code>
</p><p>
The _Sp_counted_base specialization for this policy contains a mutex,
which is locked in add_ref_lock(). This policy is used when GCC's atomic
builtins aren't available so explicit memory barriers are needed in places.
</p></li><li class="listitem"><p>
<code class="constant">_S_Single</code>
<code class="constant">_S_single</code>
</p><p>
This policy uses a non-reentrant add_ref_lock() with no locking. It is
used when libstdc++ is built without <code class="literal">--enable-threads</code>.

2
libstdc++-v3/doc/html/manual/status.html
View File

@ -669,7 +669,7 @@ Feature-testing recommendations for C++</a>.
<a class="link" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0040r3.html" target="_top">
P0040R3
</a>
</td><td align="center"> 7.1 </td><td align="left"><code class="code"> </code></td></tr><tr><td align="left"> <code class="code">shared_ptr::weak_type</code></td><td align="left">
</td><td align="center"> 7.1 </td><td align="left"><code class="code">__cpp_lib_raw_memory_algorithms &gt;= 201606L</code></td></tr><tr><td align="left"> <code class="code">shared_ptr::weak_type</code></td><td align="left">
<a class="link" href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0163r0.html" target="_top">
P0163R0
</a>

2
libstdc++-v3/doc/xml/manual/status_cxx2017.xml
View File

@ -392,7 +392,7 @@ Feature-testing recommendations for C++</link>.
</link>
</entry>
<entry align="center"> 7.1 </entry>
<entry><code> </code></entry>
<entry><code>__cpp_lib_raw_memory_algorithms &gt;= 201606L</code></entry>
</row>
<row>