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.
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
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>.
<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 >= 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>