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Merged
jwakely merged 1 commit into from
Nov 4, 2025
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Updates to P/R for 4376 after LWG discussion #511

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69 changes: 66 additions & 3 deletions xml/issue4376.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -60,9 +60,8 @@ Set priority to 1 after reflector poll.
<p>
"Should be addressed together with <iref ref="4238"/>."
</p>
</discussion>

<resolution>
<superseded>
<p>
This wording is relative to <paper num="N5014"/>.
</p>
Expand Down Expand Up @@ -166,6 +165,70 @@ constexpr <del>basic_vec&lt;<i>integer-from</i>&lt;Bytes&gt;, Abi&gt;</del><ins>

</li>

</ol></resolution>
</ol></superseded>

<note>2025-11-04; Matthias Kretz provides new wording</note>
<p>
This also resolves <iref ref="4238"/> and addresses
<a href="https://github.com/cplusplus/nbballot/issues/872">DE 297</a>.
</p>
</discussion>

<resolution>
<p>
This wording is relative to <paper num="N5014"/>.
</p>

<ol>

<li><p>Modify <sref ref="[simd.mask.overview]"/>, class template `basic_mask overview` synopsis, as indicated:</p>

<blockquote>
<pre>
namespace std::simd {
template&lt;size_t Bytes, class Abi&gt; class basic_mask {
public:
[&hellip;]
// <i><sref ref="[simd.mask.unary]"/>, basic_mask unary operators</i>
constexpr basic_mask operator!() const noexcept;
constexpr <del>basic_vec&lt;<i>integer-from</i>&lt;Bytes&gt;, Abi&gt;</del><ins><i>see below</i></ins> operator+() const noexcept;
constexpr <del>basic_vec&lt;<i>integer-from</i>&lt;Bytes&gt;, Abi&gt;</del><ins><i>see below</i></ins> operator-() const noexcept;
constexpr <del>basic_vec&lt;<i>integer-from</i>&lt;Bytes&gt;, Abi&gt;</del><ins><i>see below</i></ins> operator~() const noexcept;
[&hellip;]
}
</pre>
</blockquote>

</li>

<li><p>Modify <sref ref="[simd.mask.unary]"/> as indicated:</p>

<blockquote>
<pre>
constexpr basic_mask operator!() const noexcept;
constexpr <del>basic_vec&lt;<i>integer-from</i>&lt;Bytes&gt;, Abi&gt;</del><ins><i>see below</i></ins> operator+() const noexcept;
constexpr <del>basic_vec&lt;<i>integer-from</i>&lt;Bytes&gt;, Abi&gt;</del><ins><i>see below</i></ins> operator-() const noexcept;
constexpr <del>basic_vec&lt;<i>integer-from</i>&lt;Bytes&gt;, Abi&gt;</del><ins><i>see below</i></ins> operator~() const noexcept;
</pre>
<blockquote>
<p>
-1- Let <tt><i>op</i></tt> be the operator.
<p/>
-2- <i>Returns</i>: A data-parallel object where the <i>i</i>-th element is initialized to the
results of applying <tt><i>op</i></tt> to <tt>operator[](<i>i</i>)</tt> for all <i>i</i> in the
range of [0, <tt>size()</tt>).
<p/>
<ins>-?- <i>Remarks</i>: If there exists a vectorizable signed integral type <tt>I</tt> such that
<tt>sizeof(I) == Bytes</tt>, <tt>operator+()</tt>, <tt>operator-()</tt>, and <tt>operator~()</tt>
return an enabled specialization <tt>R</tt> of <tt>basic_vec</tt> such that <tt>R::value_type</tt>
denotes <tt>I</tt> and <tt>R::size() == size()</tt> is <tt>true</tt>. Otherwise, these operators
are deleted and the return type is unspecified.</ins>
</p>
</blockquote>
</blockquote>
</li>
</ol>

</resolution>

</issue>