<section xmlns="http://docbook.org/ns/docbook" version="5.0"
xml:id="status.iso.2011" xreflabel="Status C++ 2011">
<?dbhtml filename="status_iso_cxx2011.html"?>
<info><title>C++ 2011</title>
<keywordset>
<keyword>ISO C++</keyword>
<keyword>2011</keyword>
</keywordset>
</info>
<para>
<anchor xml:id="status.iso.200x" /> <!-- preserve links to old section ID -->
This table is based on the table of contents of ISO/IEC
JTC1 SC22 WG21 Doc No: N3290 Date: 2011-04-11
Final Draft International Standard, Standard for Programming Language C++
</para>
<para>
In this implementation the <literal>-std=gnu++11</literal> or
<literal>-std=c++11</literal> flag must be used to enable language
and library
features. See <link linkend="manual.intro.using.flags">dialect</link>
options. The pre-defined symbol
<constant>__cplusplus</constant> is used to check for the
presence of the required flag.
GCC 5.1 was the first release with non-experimental C++11 support,
so the API and ABI of features added in C++11 is only stable
since that release.
</para>
<para>
This status table is based on the table of contents of ISO/IEC 14882:2011.
</para>
<para>
This section describes the C++11 support in mainline GCC, not in any
particular release.
</para>
<!-- Status is Yes or No, Broken/Partial-->
<!--
Yes
No
<?dbhtml bgcolor="#C8B0B0" ?>
Broken/Partial
<?dbhtml bgcolor="#B0B0B0" ?>
-->
<table frame="all" xml:id="table.cxx11_status">
<title>C++ 2011 Implementation Status</title>
<tgroup cols="4" align="left" colsep="0" rowsep="1">
<colspec colname="c1"/>
<colspec colname="c2"/>
<colspec colname="c3"/>
<colspec colname="c4"/>
<thead>
<row>
<entry>Section</entry>
<entry>Description</entry>
<entry>Status</entry>
<entry>Comments</entry>
</row>
</thead>
<tbody>
<row>
<entry>
<emphasis>18</emphasis>
</entry>
<entry namest="c2" nameend="c4" align="left">
<emphasis>Language support</emphasis>
</entry>
</row>
<row>
<entry>18.1</entry>
<entry>General</entry>
<entry/>
<entry/>
</row>
<row>
<entry>18.2</entry>
<entry>Types</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>18.3</entry>
<entry>Implementation properties</entry>
<entry/>
<entry/>
</row>
<row>
<entry>18.3.2</entry>
<entry>Numeric Limits</entry>
<entry/>
<entry/>
</row>
<row>
<entry>18.3.2.3</entry>
<entry>Class template <code>numeric_limits</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>18.3.2.4</entry>
<entry><code>numeric_limits</code> members</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<?dbhtml bgcolor="#C8B0B0" ?>
<entry>18.3.2.5</entry>
<entry><code>float_round_style</code></entry>
<entry>N</entry>
<entry/>
</row>
<row>
<?dbhtml bgcolor="#C8B0B0" ?>
<entry>18.3.2.6</entry>
<entry><code>float_denorm_style</code></entry>
<entry>N</entry>
<entry/>
</row>
<row>
<entry>18.3.2.7</entry>
<entry><code>numeric_limits</code> specializations</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>18.3.3</entry>
<entry>C Library</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>18.4</entry>
<entry>Integer types</entry>
<entry/>
<entry/>
</row>
<row>
<entry>18.4.1</entry>
<entry>Header <code><cstdint></code> synopsis</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<?dbhtml bgcolor="#B0B0B0" ?>
<entry>18.5</entry>
<entry>Start and termination</entry>
<entry>Partial</entry>
<entry>C library dependency for quick_exit, at_quick_exit</entry>
</row>
<row>
<entry>18.6</entry>
<entry>Dynamic memory management</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>18.7</entry>
<entry>Type identification</entry>
<entry/>
<entry/>
</row>
<row>
<entry>18.7.1</entry>
<entry>Class type_info</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>18.7.2</entry>
<entry>Class bad_cast</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>18.7.3</entry>
<entry>Class bad_typeid</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>18.8</entry>
<entry>Exception handling</entry>
<entry/>
<entry/>
</row>
<row>
<entry>18.8.1</entry>
<entry>Class exception</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>18.8.2</entry>
<entry>Class bad_exception</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>18.8.3</entry>
<entry>Abnormal termination</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>18.8.4</entry>
<entry><code>uncaught_exception</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>18.8.5</entry>
<entry>Exception Propagation</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>18.8.6</entry>
<entry><code>nested_exception</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>18.9</entry>
<entry>Initializer lists</entry>
<entry/>
<entry/>
</row>
<row>
<entry>18.9.1</entry>
<entry>Initializer list constructors</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>18.9.2</entry>
<entry>Initializer list access</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>18.9.3</entry>
<entry>Initializer list range access</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>18.10</entry>
<entry>Other runtime support</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>
<emphasis>19</emphasis>
</entry>
<entry namest="c2" nameend="c4" align="left">
<emphasis>Diagnostics</emphasis>
</entry>
</row>
<row>
<entry>19.1</entry>
<entry>General</entry>
<entry/>
<entry/>
</row>
<row>
<entry>19.2</entry>
<entry>Exception classes</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>19.3</entry>
<entry>Assertions</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>19.4</entry>
<entry>Error numbers</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>19.5</entry>
<entry>System error support</entry>
<entry/>
<entry/>
</row>
<row>
<entry>19.5.1</entry>
<entry>Class <code>error_category</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>19.5.2</entry>
<entry>Class <code>error_code</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>19.5.3</entry>
<entry>Class <code>error_condition</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>19.5.4</entry>
<entry>Comparison operators</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>19.5.5</entry>
<entry>Class <code>system_error</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>
<emphasis>20</emphasis>
</entry>
<entry namest="c2" nameend="c4" align="left">
<emphasis>General utilities</emphasis>
</entry>
</row>
<row>
<entry>20.1</entry>
<entry>General</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.2</entry>
<entry>Utility components</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.2.1</entry>
<entry>Operators</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.2.2</entry>
<entry>swap</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.2.3</entry>
<entry>forward/move helpers</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.2.4</entry>
<entry>Function template <code>declval</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.3</entry>
<entry>Pairs</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.3.1</entry>
<entry>In general</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.3.2</entry>
<entry>Class template <code>pair</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.3.3</entry>
<entry>Specialized algorithms</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.3.4</entry>
<entry>Tuple-like access to <code>pair</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.3.5</entry>
<entry>Piecewise construction</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.4</entry>
<entry>Tuples</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.4.1</entry>
<entry>In general</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.4.2</entry>
<entry>Class template <code>tuple</code></entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.4.2.1</entry>
<entry>Construction</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.4.2.2</entry>
<entry>Assignment</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.4.2.3</entry>
<entry>Swap</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.4.2.4</entry>
<entry>Tuple creation functions</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.4.2.5</entry>
<entry>Tuple helper classes</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.4.2.6</entry>
<entry>Element access</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.4.2.7</entry>
<entry>Relational operators</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.4.2.8</entry>
<entry>Tuple traits</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.4.2.9</entry>
<entry>Tuple specialized algorithms</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.5</entry>
<entry>Class template <code>bitset</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.5.1</entry>
<entry><code>bitset</code> constructors</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.5.2</entry>
<entry><code>bitset</code> members</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.5.3</entry>
<entry><code>bitset</code> hash support</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.5.4</entry>
<entry><code>bitset</code> operators</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.6</entry>
<entry>Memory</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.6.1</entry>
<entry>In general</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.6.2</entry>
<entry>Header <code><memory></code> synopsis</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.6.3</entry>
<entry>Pointer traits</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.6.4</entry>
<entry>Pointer safety</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.6.5</entry>
<entry>Align</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.6.6</entry>
<entry>Allocator argument tag</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.6.7</entry>
<entry><code>uses_allocator</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.6.8</entry>
<entry>Allocator traits</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.6.9</entry>
<entry>The default allocator</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.6.10</entry>
<entry>Raw storage iterator</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.6.11</entry>
<entry>Temporary buffers</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.6.12</entry>
<entry>Specialized algorithms</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.6.12.1</entry>
<entry><code>addressof</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.6.12.2</entry>
<entry><code>uninitialized_copy</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.6.12.3</entry>
<entry><code>uninitialized_fill</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.6.12.4</entry>
<entry><code>uninitialized_fill_n</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.6.13</entry>
<entry>C library</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.7</entry>
<entry>Smart pointers</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.7.1</entry>
<entry>Class template <code>unique_ptr</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.7.2</entry>
<entry>Shared-ownership pointers</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.7.2.1</entry>
<entry>Class <code>bad_weak_ptr</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.7.2.2</entry>
<entry>Class template <code>shared_ptr</code></entry>
<entry>Y</entry>
<entry>
Uses code from
<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.boost.org/libs/smart_ptr/shared_ptr.htm">boost::shared_ptr</link>.
</entry>
</row>
<row>
<entry>20.7.2.3</entry>
<entry>Class template <code>weak_ptr</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.7.2.4</entry>
<entry>Class template <code>enable_shared_from_this</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.7.2.5</entry>
<entry><code>shared_ptr</code> atomic access</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.7.2.6</entry>
<entry>Smart pointer hash support</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.8</entry>
<entry>Function objects</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.8.1</entry>
<entry>Definitions</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.8.2</entry>
<entry>Requirements</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.8.3</entry>
<entry>Class template <code>reference_wrapper</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.8.4</entry>
<entry>Arithmetic operation</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.8.5</entry>
<entry>Comparisons</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.8.6</entry>
<entry>Logical operations</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.8.7</entry>
<entry>Bitwise operations</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.8.8</entry>
<entry>Negators</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.8.9</entry>
<entry>Function template <code>bind</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.8.10</entry>
<entry>Function template <code>mem_fn</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.8.11</entry>
<entry>Polymorphic function wrappers</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.8.11.1</entry>
<entry>Class <code>bad_function_call</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<?dbhtml bgcolor="#B0B0B0" ?>
<entry>20.8.11.2</entry>
<entry>Class template <code>function</code></entry>
<entry>Partial</entry>
<entry>Missing allocator support</entry>
</row>
<row>
<entry>20.8.12</entry>
<entry>Class template <code>hash</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.9</entry>
<entry>Metaprogramming and type traits</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.9.1</entry>
<entry>Requirements</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.9.2</entry>
<entry>Header <code><type_traits></code> synopsis</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.9.3</entry>
<entry>Helper classes</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.9.4</entry>
<entry>Unary Type Traits</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.9.4.1</entry>
<entry>Primary type categories</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.9.4.2</entry>
<entry>Composite type traits</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.9.4.3</entry>
<entry>Type properties</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.9.5</entry>
<entry>Type property queries</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.9.6</entry>
<entry>Relationships between types</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.9.7</entry>
<entry>Transformations between types</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.9.7.1</entry>
<entry>Const-volatile modifications</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.9.7.2</entry>
<entry>Reference modifications</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.9.7.3</entry>
<entry>Sign modifications</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.9.7.4</entry>
<entry>Array modifications</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.9.7.5</entry>
<entry>Pointer modifications</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.9.7.6</entry>
<entry>Other transformations</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.10</entry>
<entry>Compile-time rational arithmetic</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.10.1</entry>
<entry>In general</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.10.2</entry>
<entry>Header <code><ratio></code> synopsis</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.10.3</entry>
<entry>Class template <code>ratio</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.10.4</entry>
<entry>Arithmetic on <code>ratio</code>s</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.10.5</entry>
<entry>Comparison of <code>ratio</code>s</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.10.6</entry>
<entry>SI types for <code>ratio</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.11</entry>
<entry>Time utilities</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.11.3</entry>
<entry>Clock requirements</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.11.4</entry>
<entry>Time-related traits</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.11.4.1</entry>
<entry><code>treat_as_floating_point</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.11.4.2</entry>
<entry><code>duration_values</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.11.4.3</entry>
<entry>Specializations of <code>common_type</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.11.5</entry>
<entry>Class template <code>duration</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.11.6</entry>
<entry>Class template <code>time_point</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.11.7</entry>
<entry>Clocks</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.11.7.1</entry>
<entry>Class <code>system_clock</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.11.7.2</entry>
<entry>Class <code>steady_clock</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.11.7.3</entry>
<entry>Class <code>high_resolution_clock</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.11.8</entry>
<entry>Date and time functions</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.12</entry>
<entry>Scoped allocator adaptor</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.12.1</entry>
<entry>Header <code><scoped_allocator></code> synopsis</entry>
<entry/>
<entry/>
</row>
<row>
<entry>20.12.2</entry>
<entry>Scoped allocator adaptor member types</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.12.3</entry>
<entry>Scoped allocator adaptor constructors</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.12.4</entry>
<entry>Scoped allocator adaptor members</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.12.5</entry>
<entry>Scoped allocator operators</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>20.13</entry>
<entry>Class <code>type_index</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>
<emphasis>21</emphasis>
</entry>
<entry namest="c2" nameend="c4" align="left">
<emphasis>Strings</emphasis>
</entry>
</row>
<row>
<entry>21.1</entry>
<entry>General</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>21.2</entry>
<entry>Character traits</entry>
<entry/>
<entry/>
</row>
<row>
<entry>21.2.1</entry>
<entry>Character traits requirements</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>21.2.2</entry>
<entry>traits typedefs</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>21.2.3</entry>
<entry><code>char_traits</code> specializations</entry>
<entry/>
<entry/>
</row>
<row>
<entry>21.2.3.1</entry>
<entry>struct <code>char_traits<char></code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>21.2.3.2</entry>
<entry>struct <code>char_traits<char16_t></code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>21.2.3.3</entry>
<entry>struct <code>char_traits<char32_t></code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>21.2.3.4</entry>
<entry>struct <code>char_traits<wchar_t></code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>21.3</entry>
<entry>String classes</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>21.4</entry>
<entry>Class template <code>basic_string</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>21.5</entry>
<entry>Numeric Conversions</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>21.6</entry>
<entry>Hash support</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<?dbhtml bgcolor="#B0B0B0" ?>
<entry>21.7</entry>
<entry>Null-terminated sequence utilities</entry>
<entry>Partial</entry>
<entry>C library dependency. </entry>
</row>
<row>
<entry>
<emphasis>22</emphasis>
</entry>
<entry namest="c2" nameend="c4" align="left">
<emphasis>Localization</emphasis>
</entry>
</row>
<row>
<entry>22.1</entry>
<entry>General</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.2</entry>
<entry>Header <code><locale></code> synopsis</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.3</entry>
<entry>Locales</entry>
<entry/>
<entry/>
</row>
<row>
<entry>22.3.1</entry>
<entry>Class <code>locale</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.3.2</entry>
<entry><code>locale</code> globals</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.3.3</entry>
<entry>Convenience interfaces</entry>
<entry/>
<entry/>
</row>
<row>
<entry>22.3.3.1</entry>
<entry>Character classification</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.3.3.2</entry>
<entry>Conversions</entry>
<entry/>
<entry/>
</row>
<row>
<entry>22.3.3.2.1</entry>
<entry>Character conversions</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.3.3.2.2</entry>
<entry><code>string</code> conversions</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.3.3.2.3</entry>
<entry>Buffer conversions</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.4</entry>
<entry>Standard <code>locale</code> categories</entry>
<entry/>
<entry/>
</row>
<row>
<entry>22.4.1</entry>
<entry>The <code>ctype</code> category</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.4.2</entry>
<entry>The numeric category</entry>
<entry/>
<entry/>
</row>
<row>
<entry>22.4.2.1</entry>
<entry><code>num_get</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.4.2.2</entry>
<entry><code>num_put</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.4.3</entry>
<entry>The numeric punctuation facet</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.4.4</entry>
<entry>The collate category</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.4.5</entry>
<entry>The time category</entry>
<entry/>
<entry/>
</row>
<row>
<entry>22.4.5.1</entry>
<entry>Class template <code>time_get</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.4.5.2</entry>
<entry>Class template <code>time_get_byname</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.4.5.3</entry>
<entry>Class template <code>time_put</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.4.5.3</entry>
<entry>Class template <code>time_put_byname</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.4.6</entry>
<entry>The monetary category</entry>
<entry/>
<entry/>
</row>
<row>
<entry>22.4.6.1</entry>
<entry>Class template <code>money_get</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.4.6.2</entry>
<entry>Class template <code>money_put</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.4.6.3</entry>
<entry>Class template <code>money_punct</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.4.6.4</entry>
<entry>Class template <code>money_punct_byname</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.4.7</entry>
<entry>The message retrieval category</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.4.8</entry>
<entry>Program-defined facets</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.5</entry>
<entry>Standard code conversion facets</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>22.6</entry>
<entry>C Library Locales</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>
<emphasis>23</emphasis>
</entry>
<entry namest="c2" nameend="c4" align="left">
<emphasis>Containers</emphasis>
</entry>
</row>
<row>
<entry>23.1</entry>
<entry>General</entry>
<entry/>
<entry/>
</row>
<row>
<entry>23.2</entry>
<entry>Container requirements</entry>
<entry/>
<entry/>
</row>
<row>
<entry>23.2.1</entry>
<entry>General container requirements</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.2.2</entry>
<entry>Container data races</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.2.3</entry>
<entry>Sequence containers</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.2.4</entry>
<entry>Associative containers</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.2.5</entry>
<entry>Unordered associative containers</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.3</entry>
<entry>Sequence containers</entry>
<entry/>
<entry/>
</row>
<row>
<entry>23.3.2</entry>
<entry>Class template <code>array</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.3.3</entry>
<entry>Class template <code>deque</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.3.4</entry>
<entry>Class template <code>forward_list</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.3.5</entry>
<entry>Class template <code>list</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.3.6</entry>
<entry>Class template <code>vector</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.3.7</entry>
<entry>Class <code>vector<bool></code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.4</entry>
<entry>Associative containers</entry>
<entry/>
<entry/>
</row>
<row>
<entry>23.4.4</entry>
<entry>Class template <code>map</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.4.5</entry>
<entry>Class template <code>multimap</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.4.6</entry>
<entry>Class template <code>set</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.4.7</entry>
<entry>Class template <code>multiset</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.5</entry>
<entry>Unordered associative containers</entry>
<entry/>
<entry/>
</row>
<row>
<entry>23.5.4</entry>
<entry>Class template <code>unordered_map</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.5.5</entry>
<entry>Class template <code>unordered_multimap</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.5.6</entry>
<entry>Class template <code>unordered_set</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.5.7</entry>
<entry>Class template <code>unordered_multiset</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.6</entry>
<entry>Container adaptors</entry>
<entry/>
<entry/>
</row>
<row>
<entry>23.6.1</entry>
<entry>Class template <code>queue</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.6.2</entry>
<entry>Class template <code>priority_queue</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>23.6.3</entry>
<entry>Class template <code>stack</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>
<emphasis>24</emphasis>
</entry>
<entry namest="c2" nameend="c4" align="left">
<emphasis>Iterators</emphasis>
</entry>
</row>
<row>
<entry>24.1</entry>
<entry>General</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>24.2</entry>
<entry>Iterator requirements</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>24.3</entry>
<entry>Header <code><iterator></code> synopsis</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>24.4</entry>
<entry>Iterator primitives</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>24.5</entry>
<entry>Iterator adaptors</entry>
<entry/>
<entry/>
</row>
<row>
<entry>24.5.1</entry>
<entry>Reverse iterators</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>24.5.2</entry>
<entry>Insert iterators</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>24.5.3</entry>
<entry>Move iterators</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>24.6</entry>
<entry>Stream iterators</entry>
<entry/>
<entry/>
</row>
<row>
<entry>24.6.1</entry>
<entry>Class template <code>istream_iterator</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>24.6.2</entry>
<entry>Class template <code>ostream_iterator</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>24.6.3</entry>
<entry>Class template <code>istreambuf_iterator</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>24.6.4</entry>
<entry>Class template <code>ostreambuf_iterator</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>24.6.5</entry>
<entry>range access</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>
<emphasis>25</emphasis>
</entry>
<entry namest="c2" nameend="c4" align="left">
<emphasis>Algorithms</emphasis>
</entry>
</row>
<row>
<entry>25.1</entry>
<entry>General</entry>
<entry/>
<entry/>
</row>
<row>
<entry>25.2</entry>
<entry>Non-modifying sequence operations</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>25.3</entry>
<entry>Mutating sequence operations</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>25.4</entry>
<entry>Sorting and related operations</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>25.5</entry>
<entry>C library algorithms</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>
<emphasis>26</emphasis>
</entry>
<entry namest="c2" nameend="c4" align="left">
<emphasis>Numerics</emphasis>
</entry>
</row>
<row>
<entry>26.1</entry>
<entry>General</entry>
<entry/>
<entry/>
</row>
<row>
<entry>26.2</entry>
<entry>Numeric type requirements</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.3</entry>
<entry>The floating-point environment</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.4</entry>
<entry>Complex numbers</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5</entry>
<entry>Random number generation</entry>
<entry/>
<entry/>
</row>
<row>
<entry>26.5.1</entry>
<entry>Requirements</entry>
<entry/>
<entry/>
</row>
<row>
<entry>26.5.2</entry>
<entry>Header <code><random></code> synopsis</entry>
<entry/>
<entry/>
</row>
<row>
<entry>26.5.3</entry>
<entry>Random number engine class templates</entry>
<entry/>
<entry/>
</row>
<row>
<entry>26.5.3.1</entry>
<entry>Class template <code>linear_congruential_engine</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.3.2</entry>
<entry>Class template <code>mersenne_twister_engine</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.3.3</entry>
<entry>Class template <code>subtract_with_carry_engine</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.4</entry>
<entry>Random number engine adaptor class templates</entry>
<entry/>
<entry/>
</row>
<row>
<entry>26.5.4.2</entry>
<entry>Class template <code>discard_block_engine</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.4.3</entry>
<entry>Class template <code>independent_bits_engine</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.4.4</entry>
<entry>Class template <code>shuffle_order_engine</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.5</entry>
<entry>Engines and engine adaptors with predefined parameters</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.6</entry>
<entry>Class <code>random_device</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.7</entry>
<entry>Utilities</entry>
<entry/>
<entry/>
</row>
<row>
<entry>26.5.7.1</entry>
<entry>Class <code>seed_seq</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.7.2</entry>
<entry>Function template <code>generate_canonical</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8</entry>
<entry>Random number distribution class templates</entry>
<entry/>
<entry/>
</row>
<row>
<entry>26.5.8.2</entry>
<entry>Uniform distributions</entry>
<entry/>
<entry/>
</row>
<row>
<entry>26.5.8.2.1</entry>
<entry>Class template <code>uniform_int_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.2.2</entry>
<entry>Class template <code>uniform_real_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.3</entry>
<entry>Bernoulli distributions</entry>
<entry/>
<entry/>
</row>
<row>
<entry>26.5.8.3.1</entry>
<entry>Class <code>bernoulli_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.3.2</entry>
<entry>Class template <code>binomial_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.3.3</entry>
<entry>Class template <code>geometric_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.3.4</entry>
<entry>Class template <code>negative_binomial_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.4</entry>
<entry>Poisson distributions</entry>
<entry/>
<entry/>
</row>
<row>
<entry>26.5.8.4.1</entry>
<entry>Class template <code>poisson_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.4.2</entry>
<entry>Class template <code>exponential_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.4.3</entry>
<entry>Class template <code>gamma_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.4.4</entry>
<entry>Class template <code>weibull_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.4.5</entry>
<entry>Class template <code>extreme_value_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.5</entry>
<entry>Normal distributions</entry>
<entry/>
<entry/>
</row>
<row>
<entry>26.5.8.5.1</entry>
<entry>Class template <code>normal_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.5.2</entry>
<entry>Class template <code>lognormal_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.5.3</entry>
<entry>Class template <code>chi_squared_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.5.4</entry>
<entry>Class template <code>cauchy_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.5.5</entry>
<entry>Class template <code>fisher_f_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.5.6</entry>
<entry>Class template <code>student_t_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.6</entry>
<entry>Sampling distributions</entry>
<entry/>
<entry/>
</row>
<row>
<entry>26.5.8.6.1</entry>
<entry>Class template <code>discrete_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.6.2</entry>
<entry>Class template <code>piecewise_constant_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.5.8.6.3</entry>
<entry>Class template <code>piecewise_linear_distribution</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.6</entry>
<entry>Numeric arrays</entry>
<entry/>
<entry/>
</row>
<row>
<entry>26.6.1</entry>
<entry>Header <code><valarray></code> synopsis</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.6.2</entry>
<entry>Class template <code>valarray</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.6.3</entry>
<entry><code>valarray</code> non-member operations</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.6.4</entry>
<entry>Class <code>slice</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.6.5</entry>
<entry>Class template <code>slice_array</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.6.6</entry>
<entry>The <code>gslice</code> class</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.6.7</entry>
<entry>Class template <code>gslice_array</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.6.8</entry>
<entry>Class template <code>mask_array</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.6.9</entry>
<entry>Class template <code>indirect_array</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.6.10</entry>
<entry><code>valarray</code> range access</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.7</entry>
<entry>Generalized numeric operations</entry>
<entry/>
<entry/>
</row>
<row>
<entry>26.7.1</entry>
<entry>Header <code><numeric></code> synopsis</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.7.2</entry>
<entry>Accumulate></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.7.3</entry>
<entry>Inner product</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.7.4</entry>
<entry>Partial sum</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.7.5</entry>
<entry>Adjacent difference</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.7.6</entry>
<entry>Iota</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>26.8</entry>
<entry>C Library</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>
<emphasis>27</emphasis>
</entry>
<entry namest="c2" nameend="c4" align="left">
<emphasis>Input/output library</emphasis>
</entry>
</row>
<row>
<entry>27.1</entry>
<entry>General</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>27.2</entry>
<entry>Iostreams requirements</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>27.2.1</entry>
<entry>Imbue Limitations</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>27.2.2</entry>
<entry>Positioning Type Limitations</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<?dbhtml bgcolor="#B0B0B0" ?>
<entry>27.2.3</entry>
<entry>Thread safety</entry>
<entry>Partial</entry>
<entry/>
</row>
<row>
<entry>27.3</entry>
<entry>Forward declarations</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>27.4</entry>
<entry>Standard iostream objects</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>27.4.1</entry>
<entry>Overview</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>27.4.2</entry>
<entry>Narrow stream objects</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>27.4.3</entry>
<entry>Wide stream objects</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>27.5</entry>
<entry>Iostreams base classes</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>27.6</entry>
<entry>Stream buffers</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>27.7</entry>
<entry>Formatting and manipulators</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>27.8</entry>
<entry>String-based streams</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>27.9</entry>
<entry>File-based streams</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>
<emphasis>28</emphasis>
</entry>
<entry namest="c2" nameend="c4" align="left">
<emphasis>Regular expressions</emphasis>
</entry>
</row>
<row>
<entry>28.1</entry>
<entry>General</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>28.2</entry>
<entry>Definitions</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>28.3</entry>
<entry>Requirements</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>28.4</entry>
<entry>Header <code><regex></code> synopsis</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>28.5</entry>
<entry>Namespace <code>std::regex_constants</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>28.6</entry>
<entry>Class <code>regex_error</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<?dbhtml bgcolor="#B0B0B0" ?>
<entry>28.7</entry>
<entry>Class template <code>regex_traits</code></entry>
<entry>Partial</entry>
<entry><code>transform_primary</code> is not correctly implemented</entry>
</row>
<row>
<entry>28.8</entry>
<entry>Class template <code>basic_regex</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>28.9</entry>
<entry>Class template <code>sub_match</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>28.10</entry>
<entry>Class template <code>match_results</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>28.11</entry>
<entry>Regular expression algorithms</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>28.12</entry>
<entry>Regular expression Iterators</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>28.13</entry>
<entry>Modified ECMAScript regular expression grammar</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>
<emphasis>29</emphasis>
</entry>
<entry namest="c2" nameend="c4" align="left">
<emphasis>Atomic operations</emphasis>
</entry>
</row>
<row>
<entry>29.1</entry>
<entry>General</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>29.2</entry>
<entry>Header <code><atomic></code> synopsis</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>29.3</entry>
<entry>Order and consistency</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>29.4</entry>
<entry>Lock-free property</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>29.5</entry>
<entry>Atomic types</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>29.6</entry>
<entry>Operations on atomic types</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>29.7</entry>
<entry>Flag Type and operations</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>29.8</entry>
<entry>Fences</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>
<emphasis>30</emphasis>
</entry>
<entry namest="c2" nameend="c4" align="left">
<emphasis>Thread support</emphasis>
</entry>
</row>
<row>
<entry>30.1</entry>
<entry>General</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.2</entry>
<entry>Requirements</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.3</entry>
<entry>Threads</entry>
<entry/>
<entry/>
</row>
<row>
<?dbhtml bgcolor="#B0B0B0" ?>
<entry>30.3.1</entry>
<entry>Class <code>thread</code></entry>
<entry>Partial</entry>
<entry><code>thread::id</code> comparisons not well-defined</entry>
</row>
<row>
<entry>30.3.2</entry>
<entry>Namespace <code>this_thread</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.4</entry>
<entry>Mutual exclusion</entry>
<entry/>
<entry/>
</row>
<row>
<entry>30.4.1</entry>
<entry>Mutex requirements</entry>
<entry/>
<entry/>
</row>
<row>
<entry>30.4.1.1</entry>
<entry>In general</entry>
<entry/>
<entry/>
</row>
<row>
<entry>30.4.1.2</entry>
<entry>Mutex types</entry>
<entry/>
<entry/>
</row>
<row>
<entry>30.4.1.2.1</entry>
<entry>Class <code>mutex</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.4.1.2.2</entry>
<entry>Class <code>recursive_mutex</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.4.1.3</entry>
<entry>Timed mutex types</entry>
<entry/>
<entry/>
</row>
<row>
<entry>30.4.1.3.1</entry>
<entry>Class <code>timed_mutex</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.4.1.3.2</entry>
<entry>Class <code>recursive_timed_mutex</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.4.2</entry>
<entry>Locks</entry>
<entry/>
<entry/>
</row>
<row>
<entry>30.4.2.1</entry>
<entry>Class template <code>lock_guard</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.4.2.2</entry>
<entry>Class template <code>unique_lock</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.4.3</entry>
<entry>Generic locking algorithms</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.4.4</entry>
<entry>Call once</entry>
<entry/>
<entry/>
</row>
<row>
<entry>30.4.4.1</entry>
<entry>Struct <code>once_flag</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<?dbhtml bgcolor="#B0B0B0" ?>
<entry>30.4.4.2</entry>
<entry>Function <code>call_once</code></entry>
<entry>Y</entry>
<entry>Exception support is broken on non-Linux targets.
See <link xmlns:xlink="http://www.w3.org/1999/xlink"
xlink:href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66146">PR
66146</link>.
</entry>
</row>
<row>
<entry>30.5</entry>
<entry>Condition variables</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.5.1</entry>
<entry>Class <code>condition_variable</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.5.2</entry>
<entry>Class <code>condition_variable_any</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.6</entry>
<entry>Futures</entry>
<entry/>
<entry/>
</row>
<row>
<entry>30.6.1</entry>
<entry>Overview</entry>
<entry/>
<entry/>
</row>
<row>
<entry>30.6.2</entry>
<entry>Error handling</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.6.3</entry>
<entry>Class <code>future_error</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.6.4</entry>
<entry>Shared state</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.6.5</entry>
<entry>Class template <code>promise</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.6.6</entry>
<entry>Class template <code>future</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.6.7</entry>
<entry>Class template <code>shared_future</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.6.8</entry>
<entry>Function template <code>async</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>30.6.9</entry>
<entry>Class template <code>packaged_task</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>
<emphasis>Appendix D</emphasis>
</entry>
<entry namest="c2" nameend="c4" align="left">
<emphasis>Compatibility features</emphasis>
</entry>
</row>
<row>
<entry>D.1</entry>
<entry>Increment operator with <code>bool</code> operand</entry>
<entry/>
<entry/>
</row>
<row>
<entry>D.2</entry>
<entry><code>register</code> keyword</entry>
<entry/>
<entry/>
</row>
<row>
<entry>D.3</entry>
<entry>Implicit declaration of copy functions</entry>
<entry/>
<entry/>
</row>
<row>
<entry>D.4</entry>
<entry>Dynamic exception specifications</entry>
<entry/>
<entry/>
</row>
<row>
<entry>D.5</entry>
<entry>C standard library headers</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>D.6</entry>
<entry>Old iostreams members</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>D.7</entry>
<entry><code>char*</code> streams</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>D.8</entry>
<entry>Function objects</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>D.9</entry>
<entry>Binders</entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>D.10</entry>
<entry><code>auto_ptr</code></entry>
<entry>Y</entry>
<entry/>
</row>
<row>
<entry>D.11</entry>
<entry>Violating exception-specifications</entry>
<entry>Y</entry>
<entry/>
</row>
</tbody>
</tgroup>
</table>
<section xml:id="iso.2011.specific" xreflabel="Implementation Specific"><info><title>Implementation Specific Behavior</title></info>
<para>For behaviour which is also specified by the 1998 and 2003 standards,
see <link linkend="iso.1998.specific">C++ 1998/2003 Implementation
Specific Behavior</link>. This section only documents behaviour which
is new in the 2011 standard.
</para>
<para>
<emphasis>17.6.5.12 [res.on.exception.handling]</emphasis>
There are no implementation-defined exception classes, only standard
exception classes (or classes derived from them) will be thrown.
</para>
<para>
<emphasis>17.6.5.14 [value.error.codes]</emphasis>
The <classname>error_category</classname> for errors originating outside
the OS, and the possible error code values for each error category,
should be documented here.
</para>
<para>
<emphasis>18.6.2.2 [new.badlength]</emphasis>
<function>what()</function> returns
<literal>"std::bad_array_new_length"</literal>.
</para>
<para>
<emphasis>20.6.9.1 [allocator.member]/5</emphasis>
Over-aligned types are not supported by
<classname>std::allocator</classname>.
</para>
<para>
<emphasis>20.7.2.2.1 [util.smartptr.shared.const]</emphasis>
When a <classname>shared_ptr</classname> constructor fails
<classname>bad_alloc</classname> (or types derived from it) will
be thrown, or when an allocator is passed to the constructor then any
exceptions thrown by the allocator.
</para>
<para>
<emphasis>20.7.2.0 [util.smartptr.weakptr]</emphasis>
<code>what()</code> returns <literal>"bad_weak_ptr"</literal>.
</para>
<para>
<emphasis>20.8.9.1.3 [func.bind.place]/1</emphasis> There are 29
placeholders defined and the placeholder types are
<literal>CopyAssignable</literal>.
</para>
<para>
<emphasis>20.11.7.1 [time.clock.system]/3, /4</emphasis>
Time point values are truncated to <code>time_t</code> values.
There is no loss of precision for conversions in the other direction.
</para>
<para>
<emphasis>20.15.7 [meta.trans]/2</emphasis>
<classname>aligned_storage</classname> does not support extended
alignment.
</para>
<para>
<emphasis>21.2.3.2 [char.traits.specializations.char16_t]</emphasis>,
<emphasis>21.2.3.3 [char.traits.specializations.char32_t]</emphasis>
The types <classname>u16streampos</classname> and
<classname>u32streampos</classname> are both synonyms for
<classname>fpos<mbstate_t></classname>.
The function <function>eof</function> returns <code>int_type(-1)</code>.
<function>char_traits<char16_t>::to_int_type</function> will
transform the "noncharacter" U+FFFF to U+FFFD (REPLACEMENT CHARACTER).
This is done to ensure that <function>to_int_type</function> never
returns the same value as <function>eof</function>, which is U+FFFF.
</para>
<para>
<emphasis>22.3.1 [locale]</emphasis>
There is one global locale for the whole program, not per-thread.
</para>
<para>
<emphasis>22.4.5.1.2 [locale.time.get.virtuals]</emphasis>,
<emphasis>22.4.5.3.2 [locale.time.put.virtuals]</emphasis>
Additional supported formats should be documented here.
</para>
<para>
<emphasis> 22.4.7.1.2 [locale.messages.virtuals]</emphasis>
The mapping should be documented here.
</para>
<para>
<emphasis>23.3.2.1 [array.overview]</emphasis>
<classname>array<T, N>::iterator</classname> is <code>T*</code> and
<classname>array<T, N>::const_iterator</classname> is
<code>const T*</code>.
</para>
<para>
<emphasis>23.5.4.2 [unord.map.cnstr]</emphasis>,
<emphasis>23.5.5.2 [unord.multimap.cnstr]</emphasis>,
<emphasis>23.5.6.2 [unord.set.cnstr]</emphasis>,
<emphasis>23.5.7.2 [unord.multiset.cnstr]</emphasis>
The default minimal bucket count is 0 for the default constructors, range
constructors and initializer-list constructors.
</para>
<para>
<emphasis>25.3.12 [alg.random.shuffle]</emphasis>
The two-argument overload of <function>random_shuffle</function>
uses <function>rand</function> as the source of randomness.
</para>
<para>
<emphasis>26.5.5 [rand.predef]</emphasis>
The type <classname>default_random_engine</classname> is a synonym for
<classname>minstd_rand0</classname>.
</para>
<para>
<emphasis> 26.5.6 [rand.device] </emphasis>
The <code>token</code> parameter of the
<classname>random_device</classname> constructor can be used to select
a specific source of random bytes. The valid token values are shown
in the list below.
The default constructor uses the token <literal>"default"</literal>.
<variablelist>
<varlistentry>
<term><literal>"default"</literal></term>
<listitem>
Select the first available source from the other entries below.
This is the only token that is always valid.
</listitem>
</varlistentry>
<varlistentry>
<term><literal>"rand_s"</literal></term>
<listitem>
Use the MSVCRT <function>rand_s</function> function.
This token is only valid for mingw-w64 targets.
</listitem>
</varlistentry>
<varlistentry>
<term><literal>"rdseed"</literal></term>
<term><literal>"rdrand"</literal> or <literal>"rdrnd"</literal></term>
<listitem>
Use the IA-32 <literal>RDSEED</literal> or <literal>RDRAND</literal>
instruction to read from an on-chip hardware random number generator.
These tokens are only valid for x86 and x86_64 targets when both
the assembler and CPU support the corresponding instruction.
</listitem>
</varlistentry>
<varlistentry>
<term><literal>"darn"</literal></term>
<listitem>
Use the Power ISA-3.0 <literal>DARN</literal>
("Deliver A Random Number")
instruction to read from an on-chip hardware random number generator.
This token is only valid for 64-bit powerpc targets when both
the assembler and CPU support the corresponding instruction.
</listitem>
</varlistentry>
<varlistentry>
<term><literal>"hw"</literal></term>
<term><literal>"hardware"</literal></term>
<listitem>
Use any available CPU
instruction to read from an on-chip hardware random number generator.
This is equivalent to trying each of the following and using the
first that is supported:
<literal>"rdseed"</literal>
<literal>"rdrand"</literal>
<literal>"darn"</literal>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>"arc4random"</literal></term>
<term><literal>"getentropy"</literal></term>
<listitem>
Use the named C library function, if available on the target.
</listitem>
</varlistentry>
<varlistentry>
<term><literal>"/dev/urandom"</literal></term>
<term><literal>"/dev/random"</literal></term>
<listitem>
Use the named character special file to read random bytes from.
These tokens are only valid when the device files are present
and readable by the current user.
</listitem>
</varlistentry>
<varlistentry>
<term><literal>"mt19937"</literal></term>
<term>seed value</term>
<listitem>
When no source of nondeterministic random numbers is available a
<classname>mersenne_twister_engine</classname> will be used.
An integer seed value can be used as the token and will be converted
to an <code>unsigned long</code> using <function>strtoul</function>.
These tokens are only valid when no other source of random bytes
is available.
</listitem>
</varlistentry>
</variablelist>
An exception of type <classname>runtime_error</classname> will be
thrown if a <classname>random_device</classname> object is constructed
with an invalid token, or if it cannot open or read from the source
of random bytes.
</para>
<para>
<emphasis>26.5.8.1 [rand.dist.general]</emphasis>
The algorithms used by the distributions should be documented here.
</para>
<para>
<emphasis>26.8 [c.math]</emphasis> Whether the
<function>rand</function> function introduces data races depends on
the C library as the function is not provided by libstdc++.
</para>
<para>
<emphasis>27.8.2.1 [stringbuf.cons]</emphasis>
Whether the sequence pointers are copied by the
<classname>basic_stringbuf</classname> move constructor should be
documented here.
</para>
<para>
<emphasis>27.9.1.2 [filebuf.cons]</emphasis>
Whether the sequence pointers are copied by the
<classname>basic_filebuf</classname> move constructor should be
documented here.
</para>
<para>
<emphasis>28.5.1 [re.synopt]</emphasis>,
<emphasis> 28.5.2 [re.matchflag] </emphasis>,
<emphasis> 28.5.3 [re.err] </emphasis>
<code>syntax_option_type</code>, <code>match_flag_type</code>
and <code>error_type</code> are unscoped enumeration types.
</para>
<para>
<emphasis>28.7 [re.traits]</emphasis>
The <literal>blank</literal> character class corresponds to the
<code>ctype_base::blank</code> mask.
</para>
<para>
<emphasis>29.4 [atomics.lockfree]</emphasis>
The values of the <code>ATOMIC_xxx_LOCK_FREE</code> macros depend on
the target and cannot be listed here.
</para>
<para>
<emphasis>30.2.3 [thread.req.native]/1</emphasis>
<classname>native_handle_type</classname> and
<methodname>native_handle</methodname> are provided. The handle types
are defined in terms of the Gthreads abstraction layer, although this
is subject to change at any time. Any use of
<classname>native_handle</classname> is inherently non-portable and
not guaranteed to work between major releases of GCC.
<variablelist>
<varlistentry>
<term><classname>thread</classname></term>
<listitem>
The native handle type is a typedef for <code>__gthread_t</code>
i.e. <code>pthread_t</code> when GCC is configured with the
<literal>posix</literal> thread model.
The value of the native handle is undefined for a thread
which is not joinable.
</listitem>
</varlistentry>
<varlistentry>
<term><classname>mutex</classname></term>
<term><classname>timed_mutex</classname></term>
<listitem>
The native handle type is <code>__gthread_mutex_t*</code> i.e.
<code>pthread_mutex_t*</code> for the <literal>posix</literal>
thread model.
</listitem>
</varlistentry>
<varlistentry>
<term><classname>recursive_mutex</classname></term>
<term><classname>recursive_timed_mutex</classname></term>
<listitem>
The native handle type is <code>__gthread_recursive_mutex_t*</code>
i.e. <code>pthread_mutex_t*</code> for the <literal>posix</literal>
thread model.
</listitem>
</varlistentry>
<varlistentry>
<term><classname>condition_variable</classname></term>
<listitem>
The native handle type is <code>__gthread_cond_t*</code> i.e.
<code>pthread_cond_t*</code> for the <literal>posix</literal>
thread model.
</listitem>
</varlistentry>
</variablelist>
</para>
<para>
<emphasis>30.6.1 [futures.overview]/2</emphasis>
<code>launch</code> is a scoped enumeration type with
overloaded operators to support bitmask operations. There are no
additional bitmask elements defined.
</para>
</section>
</section>