https://gcc.gnu.org/g:88d4738ddc9ca320ea0c1c0e31ff3ca8757ee05b
commit r16-3733-g88d4738ddc9ca320ea0c1c0e31ff3ca8757ee05b
Author: Tomasz Kamiński <tkami...@redhat.com>
Date: Mon Sep 8 11:08:09 2025 +0200
libstdc++: Document C++20 atomic_ref implementation-defined behavior.
Also introduce Implementation Specific Behavior section for C++20.
libstdc++-v3/ChangeLog:
* doc/html/index.html: Regenerated.
* doc/html/manual/index.html: Regenerated.
* doc/html/manual/intro.html: Regenerated.
* doc/html/manual/status.html: Regenatered.
* doc/xml/manual/status_cxx2020.xml: Add iso.2020.specific
section with atomic_ref documentation.
Reviewed-by: Jonathan Wakely <jwak...@redhat.com>
Signed-off-by: Tomasz Kamiński <tkami...@redhat.com>
Diff:
---
libstdc++-v3/doc/html/index.html | 2 +-
libstdc++-v3/doc/html/manual/index.html | 2 +-
libstdc++-v3/doc/html/manual/intro.html | 2 +-
libstdc++-v3/doc/html/manual/status.html | 41 +++++++++++++++++++-
libstdc++-v3/doc/xml/manual/status_cxx2020.xml | 53 ++++++++++++++++++++++++++
5 files changed, 95 insertions(+), 5 deletions(-)
diff --git a/libstdc++-v3/doc/html/index.html b/libstdc++-v3/doc/html/index.html
index dd31cff31819..01d7bb787dce 100644
--- a/libstdc++-v3/doc/html/index.html
+++ b/libstdc++-v3/doc/html/index.html
@@ -23,7 +23,7 @@
</p></div></div></div><hr /></div><div class="toc"><p><strong>Table of
Contents</strong></p><dl class="toc"><dt><span class="book"><a
href="manual/index.html">The GNU C++ Library
Manual</a></span></dt><dd><dl><dt><span class="part"><a
href="manual/intro.html">I.
Introduction
-</a></span></dt><dd><dl><dt><span class="chapter"><a
href="manual/status.html">1. Status</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/status.html#manual.intro.status.iso">Implementation
Status</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/status.html#status.iso.1998">C++
1998/2003</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/status.html#iso.1998.status">Implementation
Status</a></span></dt><dt><span class="section"><a
href="manual/status.html#iso.1998.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="manual/status.html#status.iso.2011">C++
2011</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/status.html#iso.2011.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="manual/status.html#status.iso.2014">C++
2014</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/status.html#iso.2014.specific">Impl
ementation Specific Behavior</a></span></dt><dd><dl><dt><span
class="section"><a href="manual/status.html#iso.2014.filesystemts">Filesystem
TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="manual/status.html#status.iso.2017">C++
2017</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/status.html#iso.2017.specific">Implementation Specific
Behavior</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/status.html#iso.2017.par2ts">Parallelism 2
TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="manual/status.html#status.iso.2020">C++ 2020</a></span></dt><dt><span
class="section"><a href="manual/status.html#status.iso.2023">C++
2023</a></span></dt><dt><span class="section"><a
href="manual/status.html#status.iso.tr1">C++
TR1</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/status.html#iso.tr1.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="manual/s
tatus.html#status.iso.tr24733">C++ TR 24733</a></span></dt><dt><span
class="section"><a href="manual/status.html#status.iso.specfun">C++ IS
29124</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/status.html#iso.specfun.specific">Implementation Specific
Behavior</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="manual/license.html">License</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/license.html#manual.intro.status.license.gpl">The Code:
GPL</a></span></dt><dt><span class="section"><a
href="manual/license.html#manual.intro.status.license.fdl">The Documentation:
GPL, FDL</a></span></dt></dl></dd><dt><span class="section"><a
href="manual/bugs.html">Bugs</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/bugs.html#manual.intro.status.bugs.impl">Implementation
Bugs</a></span></dt><dt><span class="section"><a
href="manual/bugs.html#manual.intro.status.bugs.iso">Standard
Bugs</a></span></dt></dl></dd></dl></dd><dt><span
class="chapter"><a href="manual/setup.html">2.
Setup</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/setup.html#manual.intro.setup.prereq">Prerequisites</a></span></dt><dt><span
class="section"><a
href="manual/configure.html">Configure</a></span></dt><dt><span
class="section"><a
href="manual/make.html">Make</a></span></dt></dl></dd><dt><span
class="chapter"><a href="manual/using.html">3.
Using</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/using.html#manual.intro.using.flags">Command
Options</a></span></dt><dt><span class="section"><a
href="manual/using_headers.html">Headers</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/using_headers.html#manual.intro.using.headers.all">Header
Files</a></span></dt><dt><span class="section"><a
href="manual/using_headers.html#manual.intro.using.headers.mixing">Mixing
Headers</a></span></dt><dt><span class="section"><a
href="manual/using_headers.html#manual.intro.using.headers.cheaders">The C Heade
rs and <code class="code">namespace std</code></a></span></dt><dt><span
class="section"><a
href="manual/using_headers.html#manual.intro.using.headers.pre">Precompiled
Headers</a></span></dt></dl></dd><dt><span class="section"><a
href="manual/using_macros.html">Macros</a></span></dt><dt><span
class="section"><a href="manual/using_dual_abi.html">Dual
ABI</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/using_dual_abi.html#manual.intro.using.abi.trouble">Troubleshooting</a></span></dt></dl></dd><dt><span
class="section"><a
href="manual/using_namespaces.html">Namespaces</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/using_namespaces.html#manual.intro.using.namespaces.all">Available
Namespaces</a></span></dt><dt><span class="section"><a
href="manual/using_namespaces.html#manual.intro.using.namespaces.std">namespace
std</a></span></dt><dt><span class="section"><a
href="manual/using_namespaces.html#manual.intro.using.namespaces.comp">Using
Namespace Compos
ition</a></span></dt></dl></dd><dt><span class="section"><a
href="manual/using_dynamic_or_shared.html">Linking</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/using_dynamic_or_shared.html#manual.intro.using.linkage.freestanding">Almost
Nothing</a></span></dt><dt><span class="section"><a
href="manual/using_dynamic_or_shared.html#manual.intro.using.linkage.dynamic">Finding
Dynamic or Shared Libraries</a></span></dt><dt><span class="section"><a
href="manual/using_dynamic_or_shared.html#manual.intro.using.linkage.experimental">Experimental
Library Extensions</a></span></dt></dl></dd><dt><span class="section"><a
href="manual/using_concurrency.html">Concurrency</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/using_concurrency.html#manual.intro.using.concurrency.prereq">Prerequisites</a></span></dt><dt><span
class="section"><a
href="manual/using_concurrency.html#manual.intro.using.concurrency.thread_safety">Thread
Safety</a></span></dt><dt><span class="sec
tion"><a
href="manual/using_concurrency.html#manual.intro.using.concurrency.atomics">Atomics</a></span></dt><dt><span
class="section"><a
href="manual/using_concurrency.html#manual.intro.using.concurrency.io">IO</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/using_concurrency.html#concurrency.io.structure">Structure</a></span></dt><dt><span
class="section"><a
href="manual/using_concurrency.html#concurrency.io.defaults">Defaults</a></span></dt><dt><span
class="section"><a
href="manual/using_concurrency.html#concurrency.io.future">Future</a></span></dt><dt><span
class="section"><a
href="manual/using_concurrency.html#concurrency.io.alt">Alternatives</a></span></dt></dl></dd><dt><span
class="section"><a
href="manual/using_concurrency.html#manual.intro.using.concurrency.containers">Containers</a></span></dt></dl></dd><dt><span
class="section"><a
href="manual/using_exceptions.html">Exceptions</a></span></dt><dd><dl><dt><span
class="section"><a href="manual/using_exception
s.html#intro.using.exception.safety">Exception Safety</a></span></dt><dt><span
class="section"><a
href="manual/using_exceptions.html#intro.using.exception.propagating">Exception
Neutrality</a></span></dt><dt><span class="section"><a
href="manual/using_exceptions.html#intro.using.exception.alloc">Memory
allocation</a></span></dt><dt><span class="section"><a
href="manual/using_exceptions.html#intro.using.exception.no">Doing
without</a></span></dt><dt><span class="section"><a
href="manual/using_exceptions.html#intro.using.exception.compat">Compatibility</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/using_exceptions.html#using.exception.compat.c">With <code
class="literal">C</code></a></span></dt><dt><span class="section"><a
href="manual/using_exceptions.html#using.exception.compat.posix">With <code
class="literal">POSIX</code> thread
cancellation</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="manual/debug.html">Debugging Support</a></span></dt>
<dd><dl><dt><span class="section"><a
href="manual/debug.html#debug.compiler">Using <span
class="command"><strong>g++</strong></span></a></span></dt><dt><span
class="section"><a href="manual/debug.html#debug.debug_mode">Debug
Mode</a></span></dt><dt><span class="section"><a
href="manual/debug.html#debug.exceptions">Tracking uncaught
exceptions</a></span></dt><dt><span class="section"><a
href="manual/debug.html#debug.memory">Memory Leak
Hunting</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/debug.html#debug.memory.mtalloc">Non-memory leaks in Pool and MT
allocators</a></span></dt></dl></dd><dt><span class="section"><a
href="manual/debug.html#debug.races">Data Race Hunting</a></span></dt><dt><span
class="section"><a href="manual/debug.html#debug.gdb">Using <span
class="command"><strong>gdb</strong></span></a></span></dt><dt><span
class="section"><a href="manual/debug.html#debug.req">Debug Versions of Library
Binary Files</a></span></dt><dt><span class="section"><a hre
f="manual/debug.html#debug.compile_time_checks">Compile Time
Checking</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="part"><a
href="manual/std_contents.html">II.
+</a></span></dt><dd><dl><dt><span class="chapter"><a
href="manual/status.html">1. Status</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/status.html#manual.intro.status.iso">Implementation
Status</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/status.html#status.iso.1998">C++
1998/2003</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/status.html#iso.1998.status">Implementation
Status</a></span></dt><dt><span class="section"><a
href="manual/status.html#iso.1998.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="manual/status.html#status.iso.2011">C++
2011</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/status.html#iso.2011.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="manual/status.html#status.iso.2014">C++
2014</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/status.html#iso.2014.specific">Impl
ementation Specific Behavior</a></span></dt><dd><dl><dt><span
class="section"><a href="manual/status.html#iso.2014.filesystemts">Filesystem
TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="manual/status.html#status.iso.2017">C++
2017</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/status.html#iso.2017.specific">Implementation Specific
Behavior</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/status.html#iso.2017.par2ts">Parallelism 2
TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="manual/status.html#status.iso.2020">C++
2020</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/status.html#iso.2020.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="manual/status.html#status.iso.2023">C++ 2023</a></span></dt><dt><span
class="section"><a href="manual/status.html#status.iso.tr1">C++
TR1</a></span></dt><dd><dl><dt><span class="section"><a href=
"manual/status.html#iso.tr1.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="manual/status.html#status.iso.tr24733">C++ TR
24733</a></span></dt><dt><span class="section"><a
href="manual/status.html#status.iso.specfun">C++ IS
29124</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/status.html#iso.specfun.specific">Implementation Specific
Behavior</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="manual/license.html">License</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/license.html#manual.intro.status.license.gpl">The Code:
GPL</a></span></dt><dt><span class="section"><a
href="manual/license.html#manual.intro.status.license.fdl">The Documentation:
GPL, FDL</a></span></dt></dl></dd><dt><span class="section"><a
href="manual/bugs.html">Bugs</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/bugs.html#manual.intro.status.bugs.impl">Implementation
Bugs</a></span></dt><
dt><span class="section"><a
href="manual/bugs.html#manual.intro.status.bugs.iso">Standard
Bugs</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a
href="manual/setup.html">2. Setup</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/setup.html#manual.intro.setup.prereq">Prerequisites</a></span></dt><dt><span
class="section"><a
href="manual/configure.html">Configure</a></span></dt><dt><span
class="section"><a
href="manual/make.html">Make</a></span></dt></dl></dd><dt><span
class="chapter"><a href="manual/using.html">3.
Using</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/using.html#manual.intro.using.flags">Command
Options</a></span></dt><dt><span class="section"><a
href="manual/using_headers.html">Headers</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/using_headers.html#manual.intro.using.headers.all">Header
Files</a></span></dt><dt><span class="section"><a
href="manual/using_headers.html#manual.intro.using.headers.mixing">
Mixing Headers</a></span></dt><dt><span class="section"><a
href="manual/using_headers.html#manual.intro.using.headers.cheaders">The C
Headers and <code class="code">namespace std</code></a></span></dt><dt><span
class="section"><a
href="manual/using_headers.html#manual.intro.using.headers.pre">Precompiled
Headers</a></span></dt></dl></dd><dt><span class="section"><a
href="manual/using_macros.html">Macros</a></span></dt><dt><span
class="section"><a href="manual/using_dual_abi.html">Dual
ABI</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/using_dual_abi.html#manual.intro.using.abi.trouble">Troubleshooting</a></span></dt></dl></dd><dt><span
class="section"><a
href="manual/using_namespaces.html">Namespaces</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/using_namespaces.html#manual.intro.using.namespaces.all">Available
Namespaces</a></span></dt><dt><span class="section"><a
href="manual/using_namespaces.html#manual.intro.using.namespaces.std">namespace
st
d</a></span></dt><dt><span class="section"><a
href="manual/using_namespaces.html#manual.intro.using.namespaces.comp">Using
Namespace Composition</a></span></dt></dl></dd><dt><span class="section"><a
href="manual/using_dynamic_or_shared.html">Linking</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/using_dynamic_or_shared.html#manual.intro.using.linkage.freestanding">Almost
Nothing</a></span></dt><dt><span class="section"><a
href="manual/using_dynamic_or_shared.html#manual.intro.using.linkage.dynamic">Finding
Dynamic or Shared Libraries</a></span></dt><dt><span class="section"><a
href="manual/using_dynamic_or_shared.html#manual.intro.using.linkage.experimental">Experimental
Library Extensions</a></span></dt></dl></dd><dt><span class="section"><a
href="manual/using_concurrency.html">Concurrency</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/using_concurrency.html#manual.intro.using.concurrency.prereq">Prerequisites</a></span></dt><dt><span
class="sect
ion"><a
href="manual/using_concurrency.html#manual.intro.using.concurrency.thread_safety">Thread
Safety</a></span></dt><dt><span class="section"><a
href="manual/using_concurrency.html#manual.intro.using.concurrency.atomics">Atomics</a></span></dt><dt><span
class="section"><a
href="manual/using_concurrency.html#manual.intro.using.concurrency.io">IO</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/using_concurrency.html#concurrency.io.structure">Structure</a></span></dt><dt><span
class="section"><a
href="manual/using_concurrency.html#concurrency.io.defaults">Defaults</a></span></dt><dt><span
class="section"><a
href="manual/using_concurrency.html#concurrency.io.future">Future</a></span></dt><dt><span
class="section"><a
href="manual/using_concurrency.html#concurrency.io.alt">Alternatives</a></span></dt></dl></dd><dt><span
class="section"><a
href="manual/using_concurrency.html#manual.intro.using.concurrency.containers">Containers</a></span></dt></dl></dd><dt><span
class="
section"><a
href="manual/using_exceptions.html">Exceptions</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/using_exceptions.html#intro.using.exception.safety">Exception
Safety</a></span></dt><dt><span class="section"><a
href="manual/using_exceptions.html#intro.using.exception.propagating">Exception
Neutrality</a></span></dt><dt><span class="section"><a
href="manual/using_exceptions.html#intro.using.exception.alloc">Memory
allocation</a></span></dt><dt><span class="section"><a
href="manual/using_exceptions.html#intro.using.exception.no">Doing
without</a></span></dt><dt><span class="section"><a
href="manual/using_exceptions.html#intro.using.exception.compat">Compatibility</a></span></dt><dd><dl><dt><span
class="section"><a
href="manual/using_exceptions.html#using.exception.compat.c">With <code
class="literal">C</code></a></span></dt><dt><span class="section"><a
href="manual/using_exceptions.html#using.exception.compat.posix">With <code
class="literal">POSIX</code> thr
ead cancellation</a></span></dt></dl></dd></dl></dd><dt><span
class="section"><a href="manual/debug.html">Debugging
Support</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/debug.html#debug.compiler">Using <span
class="command"><strong>g++</strong></span></a></span></dt><dt><span
class="section"><a href="manual/debug.html#debug.debug_mode">Debug
Mode</a></span></dt><dt><span class="section"><a
href="manual/debug.html#debug.exceptions">Tracking uncaught
exceptions</a></span></dt><dt><span class="section"><a
href="manual/debug.html#debug.memory">Memory Leak
Hunting</a></span></dt><dd><dl><dt><span class="section"><a
href="manual/debug.html#debug.memory.mtalloc">Non-memory leaks in Pool and MT
allocators</a></span></dt></dl></dd><dt><span class="section"><a
href="manual/debug.html#debug.races">Data Race Hunting</a></span></dt><dt><span
class="section"><a href="manual/debug.html#debug.gdb">Using <span
class="command"><strong>gdb</strong></span></a></span></dt><dt><span c
lass="section"><a href="manual/debug.html#debug.req">Debug Versions of Library
Binary Files</a></span></dt><dt><span class="section"><a
href="manual/debug.html#debug.compile_time_checks">Compile Time
Checking</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="part"><a
href="manual/std_contents.html">II.
Standard Contents
</a></span></dt><dd><dl><dt><span class="chapter"><a
href="manual/support.html">4.
Support
diff --git a/libstdc++-v3/doc/html/manual/index.html
b/libstdc++-v3/doc/html/manual/index.html
index 5f9109276723..816a87a291cb 100644
--- a/libstdc++-v3/doc/html/manual/index.html
+++ b/libstdc++-v3/doc/html/manual/index.html
@@ -4,7 +4,7 @@
</p></div></div><hr /></div><div class="toc"><p><strong>Table of
Contents</strong></p><dl class="toc"><dt><span class="part"><a
href="intro.html">I.
Introduction
-</a></span></dt><dd><dl><dt><span class="chapter"><a href="status.html">1.
Status</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#manual.intro.status.iso">Implementation
Status</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#status.iso.1998">C++
1998/2003</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.1998.status">Implementation
Status</a></span></dt><dt><span class="section"><a
href="status.html#iso.1998.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2011">C++ 2011</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2011.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2014">C++ 2014</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2014.specific">Implementation Specific
Behavior</a></span></dt><dd><dl><dt><span c
lass="section"><a href="status.html#iso.2014.filesystemts">Filesystem
TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2017">C++ 2017</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2017.specific">Implementation Specific
Behavior</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.2017.par2ts">Parallelism 2
TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2020">C++ 2020</a></span></dt><dt><span
class="section"><a href="status.html#status.iso.2023">C++
2023</a></span></dt><dt><span class="section"><a
href="status.html#status.iso.tr1">C++ TR1</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.tr1.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="status.html#status.iso.tr24733">C++ TR 24733</a></span></dt><dt><span
class="section"><a href="status.html#status.iso.specfun">
C++ IS 29124</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.specfun.specific">Implementation Specific
Behavior</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="license.html">License</a></span></dt><dd><dl><dt><span class="section"><a
href="license.html#manual.intro.status.license.gpl">The Code:
GPL</a></span></dt><dt><span class="section"><a
href="license.html#manual.intro.status.license.fdl">The Documentation: GPL,
FDL</a></span></dt></dl></dd><dt><span class="section"><a
href="bugs.html">Bugs</a></span></dt><dd><dl><dt><span class="section"><a
href="bugs.html#manual.intro.status.bugs.impl">Implementation
Bugs</a></span></dt><dt><span class="section"><a
href="bugs.html#manual.intro.status.bugs.iso">Standard
Bugs</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a
href="setup.html">2. Setup</a></span></dt><dd><dl><dt><span class="section"><a
href="setup.html#manual.intro.setup.prereq">Prerequisites</a></span></dt><dt><span
class="section"><a href="configure.html">Configure</a></span></dt><dt><span
class="section"><a href="make.html">Make</a></span></dt></dl></dd><dt><span
class="chapter"><a href="using.html">3. Using</a></span></dt><dd><dl><dt><span
class="section"><a href="using.html#manual.intro.using.flags">Command
Options</a></span></dt><dt><span class="section"><a
href="using_headers.html">Headers</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_headers.html#manual.intro.using.headers.all">Header
Files</a></span></dt><dt><span class="section"><a
href="using_headers.html#manual.intro.using.headers.mixing">Mixing
Headers</a></span></dt><dt><span class="section"><a
href="using_headers.html#manual.intro.using.headers.cheaders">The C Headers and
<code class="code">namespace std</code></a></span></dt><dt><span
class="section"><a
href="using_headers.html#manual.intro.using.headers.pre">Precompiled
Headers</a></span></dt></dl></dd><dt><span class="section"><a
href="using_macros.html">Macro
s</a></span></dt><dt><span class="section"><a href="using_dual_abi.html">Dual
ABI</a></span></dt><dd><dl><dt><span class="section"><a
href="using_dual_abi.html#manual.intro.using.abi.trouble">Troubleshooting</a></span></dt></dl></dd><dt><span
class="section"><a
href="using_namespaces.html">Namespaces</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_namespaces.html#manual.intro.using.namespaces.all">Available
Namespaces</a></span></dt><dt><span class="section"><a
href="using_namespaces.html#manual.intro.using.namespaces.std">namespace
std</a></span></dt><dt><span class="section"><a
href="using_namespaces.html#manual.intro.using.namespaces.comp">Using Namespace
Composition</a></span></dt></dl></dd><dt><span class="section"><a
href="using_dynamic_or_shared.html">Linking</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_dynamic_or_shared.html#manual.intro.using.linkage.freestanding">Almost
Nothing</a></span></dt><dt><span class="section"><a href="using_dynam
ic_or_shared.html#manual.intro.using.linkage.dynamic">Finding Dynamic or
Shared Libraries</a></span></dt><dt><span class="section"><a
href="using_dynamic_or_shared.html#manual.intro.using.linkage.experimental">Experimental
Library Extensions</a></span></dt></dl></dd><dt><span class="section"><a
href="using_concurrency.html">Concurrency</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.prereq">Prerequisites</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.thread_safety">Thread
Safety</a></span></dt><dt><span class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.atomics">Atomics</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.io">IO</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_concurrency.html#concurrency.io.structure">Structure</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#concurrency.io.defaults">Defaults</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#concurrency.io.future">Future</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#concurrency.io.alt">Alternatives</a></span></dt></dl></dd><dt><span
class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.containers">Containers</a></span></dt></dl></dd><dt><span
class="section"><a
href="using_exceptions.html">Exceptions</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_exceptions.html#intro.using.exception.safety">Exception
Safety</a></span></dt><dt><span class="section"><a
href="using_exceptions.html#intro.using.exception.propagating">Exception
Neutrality</a></span></dt><dt><span class="section"><a
href="using_exceptions.html#intro.using.exception.alloc">Memory
allocation</a></span></dt><dt><span class="section"><a
href="using_exceptions.html#intro.using.exception.no">Doing without</a></sp
an></dt><dt><span class="section"><a
href="using_exceptions.html#intro.using.exception.compat">Compatibility</a></span></dt><dd><dl><dt><span
class="section"><a href="using_exceptions.html#using.exception.compat.c">With
<code class="literal">C</code></a></span></dt><dt><span class="section"><a
href="using_exceptions.html#using.exception.compat.posix">With <code
class="literal">POSIX</code> thread
cancellation</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="debug.html">Debugging Support</a></span></dt><dd><dl><dt><span
class="section"><a href="debug.html#debug.compiler">Using <span
class="command"><strong>g++</strong></span></a></span></dt><dt><span
class="section"><a href="debug.html#debug.debug_mode">Debug
Mode</a></span></dt><dt><span class="section"><a
href="debug.html#debug.exceptions">Tracking uncaught
exceptions</a></span></dt><dt><span class="section"><a
href="debug.html#debug.memory">Memory Leak
Hunting</a></span></dt><dd><dl><dt><span class="section"><
a href="debug.html#debug.memory.mtalloc">Non-memory leaks in Pool and MT
allocators</a></span></dt></dl></dd><dt><span class="section"><a
href="debug.html#debug.races">Data Race Hunting</a></span></dt><dt><span
class="section"><a href="debug.html#debug.gdb">Using <span
class="command"><strong>gdb</strong></span></a></span></dt><dt><span
class="section"><a href="debug.html#debug.req">Debug Versions of Library Binary
Files</a></span></dt><dt><span class="section"><a
href="debug.html#debug.compile_time_checks">Compile Time
Checking</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="part"><a
href="std_contents.html">II.
+</a></span></dt><dd><dl><dt><span class="chapter"><a href="status.html">1.
Status</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#manual.intro.status.iso">Implementation
Status</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#status.iso.1998">C++
1998/2003</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.1998.status">Implementation
Status</a></span></dt><dt><span class="section"><a
href="status.html#iso.1998.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2011">C++ 2011</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2011.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2014">C++ 2014</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2014.specific">Implementation Specific
Behavior</a></span></dt><dd><dl><dt><span c
lass="section"><a href="status.html#iso.2014.filesystemts">Filesystem
TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2017">C++ 2017</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2017.specific">Implementation Specific
Behavior</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.2017.par2ts">Parallelism 2
TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2020">C++ 2020</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2020.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2023">C++ 2023</a></span></dt><dt><span
class="section"><a href="status.html#status.iso.tr1">C++
TR1</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.tr1.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a h
ref="status.html#status.iso.tr24733">C++ TR 24733</a></span></dt><dt><span
class="section"><a href="status.html#status.iso.specfun">C++ IS
29124</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.specfun.specific">Implementation Specific
Behavior</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="license.html">License</a></span></dt><dd><dl><dt><span class="section"><a
href="license.html#manual.intro.status.license.gpl">The Code:
GPL</a></span></dt><dt><span class="section"><a
href="license.html#manual.intro.status.license.fdl">The Documentation: GPL,
FDL</a></span></dt></dl></dd><dt><span class="section"><a
href="bugs.html">Bugs</a></span></dt><dd><dl><dt><span class="section"><a
href="bugs.html#manual.intro.status.bugs.impl">Implementation
Bugs</a></span></dt><dt><span class="section"><a
href="bugs.html#manual.intro.status.bugs.iso">Standard
Bugs</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a
href="setup.html">2. Setup</a>
</span></dt><dd><dl><dt><span class="section"><a
href="setup.html#manual.intro.setup.prereq">Prerequisites</a></span></dt><dt><span
class="section"><a href="configure.html">Configure</a></span></dt><dt><span
class="section"><a href="make.html">Make</a></span></dt></dl></dd><dt><span
class="chapter"><a href="using.html">3. Using</a></span></dt><dd><dl><dt><span
class="section"><a href="using.html#manual.intro.using.flags">Command
Options</a></span></dt><dt><span class="section"><a
href="using_headers.html">Headers</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_headers.html#manual.intro.using.headers.all">Header
Files</a></span></dt><dt><span class="section"><a
href="using_headers.html#manual.intro.using.headers.mixing">Mixing
Headers</a></span></dt><dt><span class="section"><a
href="using_headers.html#manual.intro.using.headers.cheaders">The C Headers and
<code class="code">namespace std</code></a></span></dt><dt><span
class="section"><a href="using_headers.html#manu
al.intro.using.headers.pre">Precompiled
Headers</a></span></dt></dl></dd><dt><span class="section"><a
href="using_macros.html">Macros</a></span></dt><dt><span class="section"><a
href="using_dual_abi.html">Dual ABI</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_dual_abi.html#manual.intro.using.abi.trouble">Troubleshooting</a></span></dt></dl></dd><dt><span
class="section"><a
href="using_namespaces.html">Namespaces</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_namespaces.html#manual.intro.using.namespaces.all">Available
Namespaces</a></span></dt><dt><span class="section"><a
href="using_namespaces.html#manual.intro.using.namespaces.std">namespace
std</a></span></dt><dt><span class="section"><a
href="using_namespaces.html#manual.intro.using.namespaces.comp">Using Namespace
Composition</a></span></dt></dl></dd><dt><span class="section"><a
href="using_dynamic_or_shared.html">Linking</a></span></dt><dd><dl><dt><span
class="section"><a href="using_dynamic_
or_shared.html#manual.intro.using.linkage.freestanding">Almost
Nothing</a></span></dt><dt><span class="section"><a
href="using_dynamic_or_shared.html#manual.intro.using.linkage.dynamic">Finding
Dynamic or Shared Libraries</a></span></dt><dt><span class="section"><a
href="using_dynamic_or_shared.html#manual.intro.using.linkage.experimental">Experimental
Library Extensions</a></span></dt></dl></dd><dt><span class="section"><a
href="using_concurrency.html">Concurrency</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.prereq">Prerequisites</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.thread_safety">Thread
Safety</a></span></dt><dt><span class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.atomics">Atomics</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.io">IO</a></span></dt><dd><dl><dt><
span class="section"><a
href="using_concurrency.html#concurrency.io.structure">Structure</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#concurrency.io.defaults">Defaults</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#concurrency.io.future">Future</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#concurrency.io.alt">Alternatives</a></span></dt></dl></dd><dt><span
class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.containers">Containers</a></span></dt></dl></dd><dt><span
class="section"><a
href="using_exceptions.html">Exceptions</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_exceptions.html#intro.using.exception.safety">Exception
Safety</a></span></dt><dt><span class="section"><a
href="using_exceptions.html#intro.using.exception.propagating">Exception
Neutrality</a></span></dt><dt><span class="section"><a
href="using_exceptions.html#intro.using.exception.alloc">Memor
y allocation</a></span></dt><dt><span class="section"><a
href="using_exceptions.html#intro.using.exception.no">Doing
without</a></span></dt><dt><span class="section"><a
href="using_exceptions.html#intro.using.exception.compat">Compatibility</a></span></dt><dd><dl><dt><span
class="section"><a href="using_exceptions.html#using.exception.compat.c">With
<code class="literal">C</code></a></span></dt><dt><span class="section"><a
href="using_exceptions.html#using.exception.compat.posix">With <code
class="literal">POSIX</code> thread
cancellation</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="debug.html">Debugging Support</a></span></dt><dd><dl><dt><span
class="section"><a href="debug.html#debug.compiler">Using <span
class="command"><strong>g++</strong></span></a></span></dt><dt><span
class="section"><a href="debug.html#debug.debug_mode">Debug
Mode</a></span></dt><dt><span class="section"><a
href="debug.html#debug.exceptions">Tracking uncaught exceptions</a></span></d
t><dt><span class="section"><a href="debug.html#debug.memory">Memory Leak
Hunting</a></span></dt><dd><dl><dt><span class="section"><a
href="debug.html#debug.memory.mtalloc">Non-memory leaks in Pool and MT
allocators</a></span></dt></dl></dd><dt><span class="section"><a
href="debug.html#debug.races">Data Race Hunting</a></span></dt><dt><span
class="section"><a href="debug.html#debug.gdb">Using <span
class="command"><strong>gdb</strong></span></a></span></dt><dt><span
class="section"><a href="debug.html#debug.req">Debug Versions of Library Binary
Files</a></span></dt><dt><span class="section"><a
href="debug.html#debug.compile_time_checks">Compile Time
Checking</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="part"><a
href="std_contents.html">II.
Standard Contents
</a></span></dt><dd><dl><dt><span class="chapter"><a href="support.html">4.
Support
diff --git a/libstdc++-v3/doc/html/manual/intro.html
b/libstdc++-v3/doc/html/manual/intro.html
index 5bb4814d5022..e6e1c4237812 100644
--- a/libstdc++-v3/doc/html/manual/intro.html
+++ b/libstdc++-v3/doc/html/manual/intro.html
@@ -5,4 +5,4 @@
</th></tr><tr><td width="20%" align="left"><a accesskey="p"
href="index.html">Prev</a> </td><th width="60%" align="center">The GNU C++
Library Manual</th><td width="20%" align="right"> <a accesskey="n"
href="status.html">Next</a></td></tr></table><hr /></div><div class="part"><div
class="titlepage"><div><div><h1 class="title"><a id="manual.intro"></a>Part I.
Introduction
<a id="id-1.3.3.1.1.1" class="indexterm"></a>
-</h1></div></div></div><div class="toc"><p><strong>Table of
Contents</strong></p><dl class="toc"><dt><span class="chapter"><a
href="status.html">1. Status</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#manual.intro.status.iso">Implementation
Status</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#status.iso.1998">C++
1998/2003</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.1998.status">Implementation
Status</a></span></dt><dt><span class="section"><a
href="status.html#iso.1998.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2011">C++ 2011</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2011.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2014">C++ 2014</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2014.spec
ific">Implementation Specific Behavior</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2014.filesystemts">Filesystem
TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2017">C++ 2017</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2017.specific">Implementation Specific
Behavior</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.2017.par2ts">Parallelism 2
TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2020">C++ 2020</a></span></dt><dt><span
class="section"><a href="status.html#status.iso.2023">C++
2023</a></span></dt><dt><span class="section"><a
href="status.html#status.iso.tr1">C++ TR1</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.tr1.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="status.html#status.iso.tr24733">C++ TR 24733</a></span
></dt><dt><span class="section"><a href="status.html#status.iso.specfun">C++
>IS 29124</a></span></dt><dd><dl><dt><span class="section"><a
>href="status.html#iso.specfun.specific">Implementation Specific
>Behavior</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
>href="license.html">License</a></span></dt><dd><dl><dt><span
>class="section"><a href="license.html#manual.intro.status.license.gpl">The
>Code: GPL</a></span></dt><dt><span class="section"><a
>href="license.html#manual.intro.status.license.fdl">The Documentation: GPL,
>FDL</a></span></dt></dl></dd><dt><span class="section"><a
>href="bugs.html">Bugs</a></span></dt><dd><dl><dt><span class="section"><a
>href="bugs.html#manual.intro.status.bugs.impl">Implementation
>Bugs</a></span></dt><dt><span class="section"><a
>href="bugs.html#manual.intro.status.bugs.iso">Standard
>Bugs</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a
>href="setup.html">2. Setup</a></span></dt><dd><dl><dt><span
>class="section"><a href="setu
p.html#manual.intro.setup.prereq">Prerequisites</a></span></dt><dt><span
class="section"><a href="configure.html">Configure</a></span></dt><dt><span
class="section"><a href="make.html">Make</a></span></dt></dl></dd><dt><span
class="chapter"><a href="using.html">3. Using</a></span></dt><dd><dl><dt><span
class="section"><a href="using.html#manual.intro.using.flags">Command
Options</a></span></dt><dt><span class="section"><a
href="using_headers.html">Headers</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_headers.html#manual.intro.using.headers.all">Header
Files</a></span></dt><dt><span class="section"><a
href="using_headers.html#manual.intro.using.headers.mixing">Mixing
Headers</a></span></dt><dt><span class="section"><a
href="using_headers.html#manual.intro.using.headers.cheaders">The C Headers and
<code class="code">namespace std</code></a></span></dt><dt><span
class="section"><a
href="using_headers.html#manual.intro.using.headers.pre">Precompiled
Headers</a></span><
/dt></dl></dd><dt><span class="section"><a
href="using_macros.html">Macros</a></span></dt><dt><span class="section"><a
href="using_dual_abi.html">Dual ABI</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_dual_abi.html#manual.intro.using.abi.trouble">Troubleshooting</a></span></dt></dl></dd><dt><span
class="section"><a
href="using_namespaces.html">Namespaces</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_namespaces.html#manual.intro.using.namespaces.all">Available
Namespaces</a></span></dt><dt><span class="section"><a
href="using_namespaces.html#manual.intro.using.namespaces.std">namespace
std</a></span></dt><dt><span class="section"><a
href="using_namespaces.html#manual.intro.using.namespaces.comp">Using Namespace
Composition</a></span></dt></dl></dd><dt><span class="section"><a
href="using_dynamic_or_shared.html">Linking</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_dynamic_or_shared.html#manual.intro.using.linkage.freestanding">Alm
ost Nothing</a></span></dt><dt><span class="section"><a
href="using_dynamic_or_shared.html#manual.intro.using.linkage.dynamic">Finding
Dynamic or Shared Libraries</a></span></dt><dt><span class="section"><a
href="using_dynamic_or_shared.html#manual.intro.using.linkage.experimental">Experimental
Library Extensions</a></span></dt></dl></dd><dt><span class="section"><a
href="using_concurrency.html">Concurrency</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.prereq">Prerequisites</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.thread_safety">Thread
Safety</a></span></dt><dt><span class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.atomics">Atomics</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.io">IO</a></span></dt><dd><dl><dt><span
class="section"><a href="using_concurrency.html#concur
rency.io.structure">Structure</a></span></dt><dt><span class="section"><a
href="using_concurrency.html#concurrency.io.defaults">Defaults</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#concurrency.io.future">Future</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#concurrency.io.alt">Alternatives</a></span></dt></dl></dd><dt><span
class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.containers">Containers</a></span></dt></dl></dd><dt><span
class="section"><a
href="using_exceptions.html">Exceptions</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_exceptions.html#intro.using.exception.safety">Exception
Safety</a></span></dt><dt><span class="section"><a
href="using_exceptions.html#intro.using.exception.propagating">Exception
Neutrality</a></span></dt><dt><span class="section"><a
href="using_exceptions.html#intro.using.exception.alloc">Memory
allocation</a></span></dt><dt><span class="section"><a hr
ef="using_exceptions.html#intro.using.exception.no">Doing
without</a></span></dt><dt><span class="section"><a
href="using_exceptions.html#intro.using.exception.compat">Compatibility</a></span></dt><dd><dl><dt><span
class="section"><a href="using_exceptions.html#using.exception.compat.c">With
<code class="literal">C</code></a></span></dt><dt><span class="section"><a
href="using_exceptions.html#using.exception.compat.posix">With <code
class="literal">POSIX</code> thread
cancellation</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="debug.html">Debugging Support</a></span></dt><dd><dl><dt><span
class="section"><a href="debug.html#debug.compiler">Using <span
class="command"><strong>g++</strong></span></a></span></dt><dt><span
class="section"><a href="debug.html#debug.debug_mode">Debug
Mode</a></span></dt><dt><span class="section"><a
href="debug.html#debug.exceptions">Tracking uncaught
exceptions</a></span></dt><dt><span class="section"><a
href="debug.html#debug.memor
y">Memory Leak Hunting</a></span></dt><dd><dl><dt><span class="section"><a
href="debug.html#debug.memory.mtalloc">Non-memory leaks in Pool and MT
allocators</a></span></dt></dl></dd><dt><span class="section"><a
href="debug.html#debug.races">Data Race Hunting</a></span></dt><dt><span
class="section"><a href="debug.html#debug.gdb">Using <span
class="command"><strong>gdb</strong></span></a></span></dt><dt><span
class="section"><a href="debug.html#debug.req">Debug Versions of Library Binary
Files</a></span></dt><dt><span class="section"><a
href="debug.html#debug.compile_time_checks">Compile Time
Checking</a></span></dt></dl></dd></dl></dd></dl></div></div><div
class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td
width="40%" align="left"><a accesskey="p" href="index.html">Prev</a> </td><td
width="20%" align="center"><a accesskey="u" href="index.html">Up</a></td><td
width="40%" align="right"> <a accesskey="n"
href="status.html">Next</a></td></tr><tr><td width=
"40%" align="left" valign="top">The GNU C++ Library Manual </td><td
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Chapter 1. Status</td></tr></table></div></body></html>
\ No newline at end of file
+</h1></div></div></div><div class="toc"><p><strong>Table of
Contents</strong></p><dl class="toc"><dt><span class="chapter"><a
href="status.html">1. Status</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#manual.intro.status.iso">Implementation
Status</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#status.iso.1998">C++
1998/2003</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.1998.status">Implementation
Status</a></span></dt><dt><span class="section"><a
href="status.html#iso.1998.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2011">C++ 2011</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2011.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2014">C++ 2014</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2014.spec
ific">Implementation Specific Behavior</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2014.filesystemts">Filesystem
TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2017">C++ 2017</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2017.specific">Implementation Specific
Behavior</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.2017.par2ts">Parallelism 2
TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2020">C++ 2020</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2020.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2023">C++ 2023</a></span></dt><dt><span
class="section"><a href="status.html#status.iso.tr1">C++
TR1</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.tr1.specific">Implementation
Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="status.html#status.iso.tr24733">C++ TR 24733</a></span></dt><dt><span
class="section"><a href="status.html#status.iso.specfun">C++ IS
29124</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.specfun.specific">Implementation Specific
Behavior</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="license.html">License</a></span></dt><dd><dl><dt><span class="section"><a
href="license.html#manual.intro.status.license.gpl">The Code:
GPL</a></span></dt><dt><span class="section"><a
href="license.html#manual.intro.status.license.fdl">The Documentation: GPL,
FDL</a></span></dt></dl></dd><dt><span class="section"><a
href="bugs.html">Bugs</a></span></dt><dd><dl><dt><span class="section"><a
href="bugs.html#manual.intro.status.bugs.impl">Implementation
Bugs</a></span></dt><dt><span class="section"><a
href="bugs.html#manual.intro.status.bugs.iso">Standard
Bugs</a></span></dt></dl><
/dd></dl></dd><dt><span class="chapter"><a href="setup.html">2.
Setup</a></span></dt><dd><dl><dt><span class="section"><a
href="setup.html#manual.intro.setup.prereq">Prerequisites</a></span></dt><dt><span
class="section"><a href="configure.html">Configure</a></span></dt><dt><span
class="section"><a href="make.html">Make</a></span></dt></dl></dd><dt><span
class="chapter"><a href="using.html">3. Using</a></span></dt><dd><dl><dt><span
class="section"><a href="using.html#manual.intro.using.flags">Command
Options</a></span></dt><dt><span class="section"><a
href="using_headers.html">Headers</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_headers.html#manual.intro.using.headers.all">Header
Files</a></span></dt><dt><span class="section"><a
href="using_headers.html#manual.intro.using.headers.mixing">Mixing
Headers</a></span></dt><dt><span class="section"><a
href="using_headers.html#manual.intro.using.headers.cheaders">The C Headers and
<code class="code">namespace std</code><
/a></span></dt><dt><span class="section"><a
href="using_headers.html#manual.intro.using.headers.pre">Precompiled
Headers</a></span></dt></dl></dd><dt><span class="section"><a
href="using_macros.html">Macros</a></span></dt><dt><span class="section"><a
href="using_dual_abi.html">Dual ABI</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_dual_abi.html#manual.intro.using.abi.trouble">Troubleshooting</a></span></dt></dl></dd><dt><span
class="section"><a
href="using_namespaces.html">Namespaces</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_namespaces.html#manual.intro.using.namespaces.all">Available
Namespaces</a></span></dt><dt><span class="section"><a
href="using_namespaces.html#manual.intro.using.namespaces.std">namespace
std</a></span></dt><dt><span class="section"><a
href="using_namespaces.html#manual.intro.using.namespaces.comp">Using Namespace
Composition</a></span></dt></dl></dd><dt><span class="section"><a
href="using_dynamic_or_shared.html">Linking
</a></span></dt><dd><dl><dt><span class="section"><a
href="using_dynamic_or_shared.html#manual.intro.using.linkage.freestanding">Almost
Nothing</a></span></dt><dt><span class="section"><a
href="using_dynamic_or_shared.html#manual.intro.using.linkage.dynamic">Finding
Dynamic or Shared Libraries</a></span></dt><dt><span class="section"><a
href="using_dynamic_or_shared.html#manual.intro.using.linkage.experimental">Experimental
Library Extensions</a></span></dt></dl></dd><dt><span class="section"><a
href="using_concurrency.html">Concurrency</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.prereq">Prerequisites</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.thread_safety">Thread
Safety</a></span></dt><dt><span class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.atomics">Atomics</a></span></dt><dt><span
class="section"><a href="using_concurrenc
y.html#manual.intro.using.concurrency.io">IO</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_concurrency.html#concurrency.io.structure">Structure</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#concurrency.io.defaults">Defaults</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#concurrency.io.future">Future</a></span></dt><dt><span
class="section"><a
href="using_concurrency.html#concurrency.io.alt">Alternatives</a></span></dt></dl></dd><dt><span
class="section"><a
href="using_concurrency.html#manual.intro.using.concurrency.containers">Containers</a></span></dt></dl></dd><dt><span
class="section"><a
href="using_exceptions.html">Exceptions</a></span></dt><dd><dl><dt><span
class="section"><a
href="using_exceptions.html#intro.using.exception.safety">Exception
Safety</a></span></dt><dt><span class="section"><a
href="using_exceptions.html#intro.using.exception.propagating">Exception
Neutrality</a></span></dt><dt><span class="s
ection"><a href="using_exceptions.html#intro.using.exception.alloc">Memory
allocation</a></span></dt><dt><span class="section"><a
href="using_exceptions.html#intro.using.exception.no">Doing
without</a></span></dt><dt><span class="section"><a
href="using_exceptions.html#intro.using.exception.compat">Compatibility</a></span></dt><dd><dl><dt><span
class="section"><a href="using_exceptions.html#using.exception.compat.c">With
<code class="literal">C</code></a></span></dt><dt><span class="section"><a
href="using_exceptions.html#using.exception.compat.posix">With <code
class="literal">POSIX</code> thread
cancellation</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="debug.html">Debugging Support</a></span></dt><dd><dl><dt><span
class="section"><a href="debug.html#debug.compiler">Using <span
class="command"><strong>g++</strong></span></a></span></dt><dt><span
class="section"><a href="debug.html#debug.debug_mode">Debug
Mode</a></span></dt><dt><span class="section"><a href
="debug.html#debug.exceptions">Tracking uncaught
exceptions</a></span></dt><dt><span class="section"><a
href="debug.html#debug.memory">Memory Leak
Hunting</a></span></dt><dd><dl><dt><span class="section"><a
href="debug.html#debug.memory.mtalloc">Non-memory leaks in Pool and MT
allocators</a></span></dt></dl></dd><dt><span class="section"><a
href="debug.html#debug.races">Data Race Hunting</a></span></dt><dt><span
class="section"><a href="debug.html#debug.gdb">Using <span
class="command"><strong>gdb</strong></span></a></span></dt><dt><span
class="section"><a href="debug.html#debug.req">Debug Versions of Library Binary
Files</a></span></dt><dt><span class="section"><a
href="debug.html#debug.compile_time_checks">Compile Time
Checking</a></span></dt></dl></dd></dl></dd></dl></div></div><div
class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td
width="40%" align="left"><a accesskey="p" href="index.html">Prev</a> </td><td
width="20%" align="center"><a accesskey="
u" href="index.html">Up</a></td><td width="40%" align="right"> <a
accesskey="n" href="status.html">Next</a></td></tr><tr><td width="40%"
align="left" valign="top">The GNU C++ Library Manual </td><td width="20%"
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width="40%" align="right" valign="top"> Chapter 1.
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\ No newline at end of file
diff --git a/libstdc++-v3/doc/html/manual/status.html
b/libstdc++-v3/doc/html/manual/status.html
index 564679bc6cf1..208025edaa35 100644
--- a/libstdc++-v3/doc/html/manual/status.html
+++ b/libstdc++-v3/doc/html/manual/status.html
@@ -2,7 +2,7 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";><html
xmlns="http://www.w3.org/1999/xhtml";><head><meta http-equiv="Content-Type"
content="text/html; charset=UTF-8" /><title>Chapter 1. Status</title><meta
name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta
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colspan="3" align="center">Chapter 1. Status</th></tr><tr><td width="20%"
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align="center">Part I.
Introduction
-</th><td width="20%" align="right"> <a accesskey="n"
href="license.html">Next</a></td></tr></table><hr /></div><div
class="chapter"><div class="titlepage"><div><div><h2 class="title"><a
id="manual.intro.status"></a>Chapter 1. Status</h2></div></div></div><div
class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span
class="section"><a href="status.html#manual.intro.status.iso">Implementation
Status</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#status.iso.1998">C++
1998/2003</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.1998.status">Implementation
Status</a></span></dt><dt><span class="section"><a
href="status.html#iso.1998.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2011">C++ 2011</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2011.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><d
t><span class="section"><a href="status.html#status.iso.2014">C++
2014</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.2014.specific">Implementation Specific
Behavior</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.2014.filesystemts">Filesystem
TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2017">C++ 2017</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2017.specific">Implementation Specific
Behavior</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.2017.par2ts">Parallelism 2
TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2020">C++ 2020</a></span></dt><dt><span
class="section"><a href="status.html#status.iso.2023">C++
2023</a></span></dt><dt><span class="section"><a
href="status.html#status.iso.tr1">C++ TR1</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.tr1.spe
cific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span
class="section"><a href="status.html#status.iso.tr24733">C++ TR
24733</a></span></dt><dt><span class="section"><a
href="status.html#status.iso.specfun">C++ IS
29124</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.specfun.specific">Implementation Specific
Behavior</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="license.html">License</a></span></dt><dd><dl><dt><span class="section"><a
href="license.html#manual.intro.status.license.gpl">The Code:
GPL</a></span></dt><dt><span class="section"><a
href="license.html#manual.intro.status.license.fdl">The Documentation: GPL,
FDL</a></span></dt></dl></dd><dt><span class="section"><a
href="bugs.html">Bugs</a></span></dt><dd><dl><dt><span class="section"><a
href="bugs.html#manual.intro.status.bugs.impl">Implementation
Bugs</a></span></dt><dt><span class="section"><a
href="bugs.html#manual.intro.status.bugs.iso">Standard Bugs
</a></span></dt></dl></dd></dl></div><div class="section"><div
class="titlepage"><div><div><h2 class="title" style="clear: both"><a
id="manual.intro.status.iso"></a>Implementation
Status</h2></div></div></div><div class="section"><div
class="titlepage"><div><div><h3 class="title"><a id="status.iso.1998"></a>C++
1998/2003</h3></div></div></div><div class="section"><div
class="titlepage"><div><div><h4 class="title"><a
id="iso.1998.status"></a>Implementation Status</h4></div></div></div><p>
+</th><td width="20%" align="right"> <a accesskey="n"
href="license.html">Next</a></td></tr></table><hr /></div><div
class="chapter"><div class="titlepage"><div><div><h2 class="title"><a
id="manual.intro.status"></a>Chapter 1. Status</h2></div></div></div><div
class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span
class="section"><a href="status.html#manual.intro.status.iso">Implementation
Status</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#status.iso.1998">C++
1998/2003</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.1998.status">Implementation
Status</a></span></dt><dt><span class="section"><a
href="status.html#iso.1998.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2011">C++ 2011</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2011.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><d
t><span class="section"><a href="status.html#status.iso.2014">C++
2014</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.2014.specific">Implementation Specific
Behavior</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.2014.filesystemts">Filesystem
TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2017">C++ 2017</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2017.specific">Implementation Specific
Behavior</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.2017.par2ts">Parallelism 2
TS</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2020">C++ 2020</a></span></dt><dd><dl><dt><span
class="section"><a href="status.html#iso.2020.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="status.html#status.iso.2023">C++ 2023</a></span></dt><dt><span class="sec
tion"><a href="status.html#status.iso.tr1">C++
TR1</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.tr1.specific">Implementation Specific
Behavior</a></span></dt></dl></dd><dt><span class="section"><a
href="status.html#status.iso.tr24733">C++ TR 24733</a></span></dt><dt><span
class="section"><a href="status.html#status.iso.specfun">C++ IS
29124</a></span></dt><dd><dl><dt><span class="section"><a
href="status.html#iso.specfun.specific">Implementation Specific
Behavior</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a
href="license.html">License</a></span></dt><dd><dl><dt><span class="section"><a
href="license.html#manual.intro.status.license.gpl">The Code:
GPL</a></span></dt><dt><span class="section"><a
href="license.html#manual.intro.status.license.fdl">The Documentation: GPL,
FDL</a></span></dt></dl></dd><dt><span class="section"><a
href="bugs.html">Bugs</a></span></dt><dd><dl><dt><span class="section"><a
href="bugs.html#manual.intro.status.bu
gs.impl">Implementation Bugs</a></span></dt><dt><span class="section"><a
href="bugs.html#manual.intro.status.bugs.iso">Standard
Bugs</a></span></dt></dl></dd></dl></div><div class="section"><div
class="titlepage"><div><div><h2 class="title" style="clear: both"><a
id="manual.intro.status.iso"></a>Implementation
Status</h2></div></div></div><div class="section"><div
class="titlepage"><div><div><h3 class="title"><a id="status.iso.1998"></a>C++
1998/2003</h3></div></div></div><div class="section"><div
class="titlepage"><div><div><h4 class="title"><a
id="iso.1998.status"></a>Implementation Status</h4></div></div></div><p>
This status table is based on the table of contents of ISO/IEC 14882:2003.
</p><p>
This section describes the C++ support in
@@ -1759,7 +1759,44 @@ Note 1: This feature is supported in older releases but
the
Note 2: The C++20 calendar types are supported since 11.1,
time zones and UTC are supported since 13.1,
and <code class="function">chrono::parse</code> is supported since 14.1.
-</p></div><div class="section"><div class="titlepage"><div><div><h3
class="title"><a id="status.iso.2023"></a>C++ 2023</h3></div></div></div><p>
+</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,
+ see <a class="link" href="status.html#iso.1998.specific"
title="Implementation Specific Behavior">C++ 1998/2003 Implementation
+ Specific Behavior</a>, <a class="link"
href="status.html#iso.2011.specific" title="Implementation Specific
Behavior">C++
+ 2011 Implementation Specific Behavior</a>, and
+ <a class="link" href="status.html#iso.2017.specific"
title="Implementation Specific Behavior">C++ 2017 Implementation Specific
+ Behavior</a>. This section only documents behaviour which is new in
+ the 2020 standard.
+ </p><p>
+ <span class="emphasis"><em>16.4.2.4 [compliance]</em></span>
+ The support for always lock-free integral atomic types and presence of
+ <code class="code">atomic_signed_lock_free</code> and
+ <code class="code">atomic_unsigned_lock_free</code> type aliases depends
on the
+ target.
+ </p><p>
+ <span class="emphasis"><em>31.7.1
[atomics.ref.generic.general]</em></span>,
+ <span class="emphasis"><em>31.7.3 [atomics.ref.int]</em></span>,
+ <span class="emphasis"><em>31.7.4 [atomics.ref.float]</em></span>,
+ <span class="emphasis"><em>31.7.5 [atomics.ref.pointer]</em></span>
+ The values of <code class="code">is_always_lock_free</code> members
depend on the
+ target and cannot be listed here.
+ </p><p>
+ <span class="emphasis"><em>31.7.1
[atomics.ref.generic.general]</em></span>
+ If <code class="code">sizeof(T)</code> is equal to either <code
class="code">1</code>,
+ <code class="code">2</code>, <code class="code">4</code>, <code
class="code">8</code>, or <code class="code">16</code>,
+ then the value of <code class="code">required_alignment</code> member is
equal to
+ the maximum of <code class="code">alignof(T)</code> and <code
class="code">sizeof(T)</code>.
+ Otherwise <code class="code">required_alignment</code> value is <code
class="code">alignof(T)</code>.
+ </p><p>
+ <span class="emphasis"><em>31.7.3 [atomics.ref.int]</em></span>
+ The value of <code class="code">required_alignment</code> member is
equal to the
+ maximum of <code class="code">alignof(value_type)</code> and
+ <code class="code">sizeof(value_type)</code>.
+ </p><p>
+ <span class="emphasis"><em>31.7.4 [atomics.ref.float]</em></span>,
+ <span class="emphasis"><em>31.7.5 [atomics.ref.pointer]</em></span>
+ The value of <code class="code">required_alignment</code> member is
equal to
+ <code class="code">alignof(value_type)</code>.
+ </p></div></div><div class="section"><div class="titlepage"><div><div><h3
class="title"><a id="status.iso.2023"></a>C++ 2023</h3></div></div></div><p>
In this implementation the <code class="literal">-std=gnu++23</code> or
<code class="literal">-std=c++23</code> flag must be used to enable language
and library
diff --git a/libstdc++-v3/doc/xml/manual/status_cxx2020.xml
b/libstdc++-v3/doc/xml/manual/status_cxx2020.xml
index 0e3e4c3de7f2..dca4caac91ef 100644
--- a/libstdc++-v3/doc/xml/manual/status_cxx2020.xml
+++ b/libstdc++-v3/doc/xml/manual/status_cxx2020.xml
@@ -1453,4 +1453,57 @@ time zones and UTC are supported since 13.1,
and <function>chrono::parse</function> is supported since 14.1.
</para>
+<section xml:id="iso.2020.specific" xreflabel="Implementation
Specific"><info><title>Implementation Specific Behavior</title></info>
+
+ <para>For behaviour which is also specified by previous standards,
+ see <link linkend="iso.1998.specific">C++ 1998/2003 Implementation
+ Specific Behavior</link>, <link linkend="iso.2011.specific">C++
+ 2011 Implementation Specific Behavior</link>, and
+ <link linkend="iso.2017.specific">C++ 2017 Implementation Specific
+ Behavior</link>. This section only documents behaviour which is new in
+ the 2020 standard.
+ </para>
+
+ <para>
+ <emphasis>16.4.2.4 [compliance]</emphasis>
+ The support for always lock-free integral atomic types and presence of
+ <code>atomic_signed_lock_free</code> and
+ <code>atomic_unsigned_lock_free</code> type aliases depends on the
+ target.
+ </para>
+
+ <para>
+ <emphasis>31.7.1 [atomics.ref.generic.general]</emphasis>,
+ <emphasis>31.7.3 [atomics.ref.int]</emphasis>,
+ <emphasis>31.7.4 [atomics.ref.float]</emphasis>,
+ <emphasis>31.7.5 [atomics.ref.pointer]</emphasis>
+ The values of <code>is_always_lock_free</code> members depend on the
+ target and cannot be listed here.
+ </para>
+
+ <para>
+ <emphasis>31.7.1 [atomics.ref.generic.general]</emphasis>
+ If <code>sizeof(T)</code> is equal to either <code>1</code>,
+ <code>2</code>, <code>4</code>, <code>8</code>, or <code>16</code>,
+ then the value of <code>required_alignment</code> member is equal to
+ the maximum of <code>alignof(T)</code> and <code>sizeof(T)</code>.
+ Otherwise <code>required_alignment</code> value is
<code>alignof(T)</code>.
+ </para>
+
+ <para>
+ <emphasis>31.7.3 [atomics.ref.int]</emphasis>
+ The value of <code>required_alignment</code> member is equal to the
+ maximum of <code>alignof(value_type)</code> and
+ <code>sizeof(value_type)</code>.
+ </para>
+
+ <para>
+ <emphasis>31.7.4 [atomics.ref.float]</emphasis>,
+ <emphasis>31.7.5 [atomics.ref.pointer]</emphasis>
+ The value of <code>required_alignment</code> member is equal to
+ <code>alignof(value_type)</code>.
+ </para>
+
+</section>
+
</section>
