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doc/html/boost_config/acknowledgements.html
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Acknowledgements</title> <title>Acknowledgements</title>
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doc/html/boost_config/boost_macro_reference.html
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Boost Macro Reference</title> <title>Boost Macro Reference</title>
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@@ -50,6 +50,8 @@
that describe C++20 features not supported</a></span></dt> that describe C++20 features not supported</a></span></dt>
<dt><span class="section"><a href="boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_c__23_features_not_supported">Macros <dt><span class="section"><a href="boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_c__23_features_not_supported">Macros
that describe C++23 features not supported</a></span></dt> that describe C++23 features not supported</a></span></dt>
<dt><span class="section"><a href="boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_c__26_features_not_supported">Macros
that describe C++26 features not supported</a></span></dt>
<dt><span class="section"><a href="boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_features_that_have_been_removed_from_the_standard_">Macros <dt><span class="section"><a href="boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_features_that_have_been_removed_from_the_standard_">Macros
that describe features that have been removed from the standard.</a></span></dt> that describe features that have been removed from the standard.</a></span></dt>
<dt><span class="section"><a href="boost_macro_reference.html#boost_config.boost_macro_reference.boost_helper_macros">Boost <dt><span class="section"><a href="boost_macro_reference.html#boost_config.boost_macro_reference.boost_helper_macros">Boost
@@ -1578,24 +1580,22 @@
</td> </td>
</tr> </tr>
<tr> <tr>
<td> <td>
<p> <p>
<code class="computeroutput"><span class="identifier">BOOST_HAS_BUILTIN_LAUNDER</span></code> <code class="computeroutput"><span class="identifier">BOOST_HAS_BUILTIN_LAUNDER</span></code>
</p> </p>
</td> </td>
<td> <td>
<p> <p>
Compiler Compiler
</p> </p>
</td> </td>
<td> <td>
<p> <p>
The compiler implements the <code class="computeroutput"> The compiler implements the <code class="computeroutput"><span class="identifier">__builtin_launder</span><span class="special">()</span></code> compiler intrinsic that is needed
<span class="identifier">__builtin_launder()</span></code> to implement a constexpr pointer laundering function like <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">launder</span></code>.
compiler intrinsic that is needed to implement a constexpr </p>
pointer laundering function like <code class="computeroutput">std::launder</code>. </td>
</p>
</td>
</tr> </tr>
<tr> <tr>
<td> <td>
@@ -4194,16 +4194,16 @@
</td> </td>
</tr> </tr>
<tr> <tr>
<td> <td>
<p> <p>
<code class="computeroutput"><span class="identifier">BOOST_NO_CXX17_STD_LAUNDER</span></code> <code class="computeroutput"><span class="identifier">BOOST_NO_CXX17_STD_LAUNDER</span></code>
</p> </p>
</td> </td>
<td> <td>
<p> <p>
The compiler does not support <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">launder</span><span class="special">()</span></code>. The compiler does not support <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">launder</span><span class="special">()</span></code>.
</p> </p>
</td> </td>
</tr> </tr>
<tr> <tr>
<td> <td>
@@ -4694,6 +4694,144 @@
</div> </div>
<div class="section"> <div class="section">
<div class="titlepage"><div><div><h3 class="title"> <div class="titlepage"><div><div><h3 class="title">
<a name="boost_config.boost_macro_reference.macros_that_describe_c__26_features_not_supported"></a><a class="link" href="boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_c__26_features_not_supported" title="Macros that describe C++26 features not supported">Macros
that describe C++26 features not supported</a>
</h3></div></div></div>
<p>
The following macros describe features in the 2026 ISO C++ standard, formerly
known as C++2c, that are not yet supported by a particular compiler or library.
</p>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Macro
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_NO_CXX26_HDR_CONTRACTS</span></code>
</p>
</td>
<td>
<p>
The compiler does not support the header <code class="computeroutput"><span class="special">&lt;</span><span class="identifier">contracts</span><span class="special">&gt;</span></code>.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_NO_CXX26_HDR_DEBUGGING</span></code>
</p>
</td>
<td>
<p>
The compiler does not support the header <code class="computeroutput"><span class="special">&lt;</span><span class="identifier">debugging</span><span class="special">&gt;</span></code>.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_NO_CXX26_HDR_HAZARD_POINTER</span></code>
</p>
</td>
<td>
<p>
The compiler does not support the header <code class="computeroutput"><span class="special">&lt;</span><span class="identifier">hazard_pointer</span><span class="special">&gt;</span></code>.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_NO_CXX26_HDR_HIVE</span></code>
</p>
</td>
<td>
<p>
The compiler does not support the header <code class="computeroutput"><span class="special">&lt;</span><span class="identifier">hive</span><span class="special">&gt;</span></code>.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_NO_CXX26_HDR_INPLACE_VECTOR</span></code>
</p>
</td>
<td>
<p>
The compiler does not support the header <code class="computeroutput"><span class="special">&lt;</span><span class="identifier">inlace_vector</span><span class="special">&gt;</span></code>.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_NO_CXX26_HDR_LINALG</span></code>
</p>
</td>
<td>
<p>
The compiler does not support the header <code class="computeroutput"><span class="special">&lt;</span><span class="identifier">linalg</span><span class="special">&gt;</span></code>.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_NO_CXX26_HDR_RCU</span></code>
</p>
</td>
<td>
<p>
The compiler does not support the header <code class="computeroutput"><span class="special">&lt;</span><span class="identifier">rcu</span><span class="special">&gt;</span></code>.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_NO_CXX26_HDR_SIMD</span></code>
</p>
</td>
<td>
<p>
The compiler does not support the header <code class="computeroutput"><span class="special">&lt;</span><span class="identifier">simd</span><span class="special">&gt;</span></code>.
</p>
</td>
</tr>
<tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_NO_CXX26_HDR_TEXT_ENCODING</span></code>
</p>
</td>
<td>
<p>
The compiler does not support the header <code class="computeroutput"><span class="special">&lt;</span><span class="identifier">text_encoding</span><span class="special">&gt;</span></code>.
</p>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="boost_config.boost_macro_reference.macros_that_describe_features_that_have_been_removed_from_the_standard_"></a><a class="link" href="boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_features_that_have_been_removed_from_the_standard_" title="Macros that describe features that have been removed from the standard.">Macros <a name="boost_config.boost_macro_reference.macros_that_describe_features_that_have_been_removed_from_the_standard_"></a><a class="link" href="boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_features_that_have_been_removed_from_the_standard_" title="Macros that describe features that have been removed from the standard.">Macros
that describe features that have been removed from the standard.</a> that describe features that have been removed from the standard.</a>
</h3></div></div></div> </h3></div></div></div>
@@ -5691,6 +5829,27 @@
</td> </td>
</tr> </tr>
<tr> <tr>
<td>
<p>
<code class="computeroutput"><span class="identifier">BOOST_GCC_VERSION</span></code>
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">config</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
</p>
</td>
<td>
<p>
Defined for GCC and any other compilers that also define <code class="computeroutput"><span class="identifier">__GNUC__</span></code>. Has the value: <code class="computeroutput"><span class="identifier">__GNUC__</span> <span class="special">*</span>
<span class="number">10000</span> <span class="special">+</span>
<span class="identifier">__GNUC_MINOR__</span> <span class="special">*</span>
<span class="number">100</span> <span class="special">+</span>
<span class="identifier">__GNUC_PATCHLEVEL__</span></code>.
</p>
</td>
</tr>
<tr>
<td> <td>
<p> <p>
<code class="computeroutput"><span class="identifier">BOOST_INTEL</span></code> <code class="computeroutput"><span class="identifier">BOOST_INTEL</span></code>
doc/html/boost_config/build_config.html
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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@@ -81,6 +81,8 @@
that describe C++20 features not supported</a></span></dt> that describe C++20 features not supported</a></span></dt>
<dt><span class="section"><a href="boost_config/boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_c__23_features_not_supported">Macros <dt><span class="section"><a href="boost_config/boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_c__23_features_not_supported">Macros
that describe C++23 features not supported</a></span></dt> that describe C++23 features not supported</a></span></dt>
<dt><span class="section"><a href="boost_config/boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_c__26_features_not_supported">Macros
that describe C++26 features not supported</a></span></dt>
<dt><span class="section"><a href="boost_config/boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_features_that_have_been_removed_from_the_standard_">Macros <dt><span class="section"><a href="boost_config/boost_macro_reference.html#boost_config.boost_macro_reference.macros_that_describe_features_that_have_been_removed_from_the_standard_">Macros
that describe features that have been removed from the standard.</a></span></dt> that describe features that have been removed from the standard.</a></span></dt>
<dt><span class="section"><a href="boost_config/boost_macro_reference.html#boost_config.boost_macro_reference.boost_helper_macros">Boost <dt><span class="section"><a href="boost_config/boost_macro_reference.html#boost_config.boost_macro_reference.boost_helper_macros">Boost
doc/macro_reference.qbk
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@@ -1099,6 +1099,26 @@ that are not yet supported by a particular compiler or library.
[endsect] [endsect]
[section Macros that describe C++26 features not supported]
The following macros describe features in the 2026 ISO C++ standard, formerly known as C++2c,
that are not yet supported by a particular compiler or library.
[table
[[Macro ][Description ]]
[[`BOOST_NO_CXX26_HDR_CONTRACTS`][The compiler does not support the header `<contracts>`.]]
[[`BOOST_NO_CXX26_HDR_DEBUGGING`][The compiler does not support the header `<debugging>`.]]
[[`BOOST_NO_CXX26_HDR_HAZARD_POINTER`][The compiler does not support the header `<hazard_pointer>`.]]
[[`BOOST_NO_CXX26_HDR_HIVE`][The compiler does not support the header `<hive>`.]]
[[`BOOST_NO_CXX26_HDR_INPLACE_VECTOR`][The compiler does not support the header `<inlace_vector>`.]]
[[`BOOST_NO_CXX26_HDR_LINALG`][The compiler does not support the header `<linalg>`.]]
[[`BOOST_NO_CXX26_HDR_RCU`][The compiler does not support the header `<rcu>`.]]
[[`BOOST_NO_CXX26_HDR_SIMD`][The compiler does not support the header `<simd>`.]]
[[`BOOST_NO_CXX26_HDR_TEXT_ENCODING`][The compiler does not support the header `<text_encoding>`.]]
]
[endsect]
[section Macros that describe features that have been removed from the standard.] [section Macros that describe features that have been removed from the standard.]
The following macros describe features which were required by one version of the standard, but have been removed by later versions. The following macros describe features which were required by one version of the standard, but have been removed by later versions.