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<title>Issue 3805: Expression evaluating to a call wrapper is a prvalue, not an object</title>
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<p><em>This page is a snapshot from the LWG issues list, see the <a href="lwg-active.html">Library Active Issues List</a> for more information and the meaning of <a href="lwg-active.html#New">New</a> status.</em></p>
<h3 id="3805"><a href="lwg-active.html#3805">3805</a>. Expression evaluating to a call wrapper is a prvalue, not an object</h3>
<p><b>Section:</b> 22.10 <a href="https://wg21.link/function.objects">[function.objects]</a>, 25.5.7.3 <a href="https://wg21.link/range.utility.conv.adaptors">[range.utility.conv.adaptors]</a>, 25.7.2 <a href="https://wg21.link/range.adaptor.object">[range.adaptor.object]</a> <b>Status:</b> <a href="lwg-active.html#New">New</a>
 <b>Submitter:</b> Johel Ernesto Guerrero Pe&ntilde;a <b>Opened:</b> 2022-10-26 <b>Last modified:</b> 2022-11-01</p>
<p><b>Priority: </b>4
</p>
<p><b>View all other</b> <a href="lwg-index.html#function.objects">issues</a> in [function.objects].</p>
<p><b>View all issues with</b> <a href="lwg-status.html#New">New</a> status.</p>
<p><b>Discussion:</b></p>
<p>
22.10.3 <a href="https://wg21.link/func.def">[func.def]</a> defines
</p>
<blockquote><p>
-6- A <i>call wrapper</i> is an object of a call wrapper type.
</p></blockquote>
<p>
Most importantly, a call wrapper is an object.
<p/>
A number of functions in 22.10 <a href="https://wg21.link/function.objects">[function.objects]</a> and expressions in 
25.5.7.3 <a href="https://wg21.link/range.utility.conv.adaptors">[range.utility.conv.adaptors]</a> and 25.7.2 <a href="https://wg21.link/range.adaptor.object">[range.adaptor.object]</a> 
are specified to result in a call wrapper. Most notably, the return type of 
<code>ranges::to</code> is <code>auto</code>, so its result is definitely a prvalue and not a "call wrapper" object.
<p/>
Where a prvalue result is meant, the wording should be clarified to mean 
"a prvalue whose object it initializes is a call wrapper".
</p>

<p><i>[2022-11-01; Reflector poll]</i></p>

<p>
Set priority to 4 after reflector poll.
</p>



<p id="res-3805"><b>Proposed resolution:</b></p>





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