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<title>Issue 185: Questionable use of term &quot;inline&quot;</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#CD1">CD1</a> status.</em></p>
<h3 id="185"><a href="lwg-defects.html#185">185</a>. Questionable use of term &quot;inline&quot;</h3>
<p><b>Section:</b> 22.10 <a href="https://wg21.link/function.objects">[function.objects]</a> <b>Status:</b> <a href="lwg-active.html#CD1">CD1</a>
 <b>Submitter:</b> UK Panel <b>Opened:</b> 1999-07-26 <b>Last modified:</b> 2016-01-28</p>
<p><b>Priority: </b>Not Prioritized
</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#CD1">CD1</a> status.</p>
<p><b>Discussion:</b></p>
<p>Paragraph 4 of 22.10 <a href="https://wg21.link/function.objects">[function.objects]</a> says:</p>
<blockquote>
  <p>&nbsp;[Example: To negate every element of a: transform(a.begin(), a.end(),
  a.begin(), negate&lt;double&gt;()); The corresponding functions will inline
  the addition and the negation. end example]</p>
</blockquote>
<p>(Note: The &quot;addition&quot; referred to in the above is in para 3) we can
find no other wording, except this (non-normative) example which suggests that
any &quot;inlining&quot; will take place in this case.</p>
<p>Indeed both:</p>
<blockquote>
  <p>17.4.4.3 Global Functions [lib.global.functions] 1 It is
  unspecified whether any global functions in the C++ Standard Library
  are defined as inline (7.1.2).</p>
</blockquote>
<p>and</p>
<blockquote>
  <p>17.4.4.4 Member Functions [lib.member.functions] 1 It is
  unspecified whether any member functions in the C++ Standard Library
  are defined as inline (7.1.2).</p>
</blockquote>
<p>take care to state that this may indeed NOT be the case.</p>
<p>Thus the example &quot;mandates&quot; behavior that is explicitly
not required elsewhere.</p>


<p id="res-185"><b>Proposed resolution:</b></p>
<p>In 22.10 <a href="https://wg21.link/function.objects">[function.objects]</a> paragraph 1, remove the sentence:</p>
<blockquote>
<p>They are important for the effective use of the library.</p>
</blockquote>
<p>Remove 22.10 <a href="https://wg21.link/function.objects">[function.objects]</a> paragraph 2, which reads:</p>
<blockquote>
  <p> Using function objects together with function templates
  increases the expressive power of the library as well as making the
  resulting code much more efficient.</p>
</blockquote>
<p>In 22.10 <a href="https://wg21.link/function.objects">[function.objects]</a> paragraph 4, remove the sentence:</p>
<blockquote>
  <p>The corresponding functions will inline the addition and the
  negation.</p>
</blockquote>

<p><i>[Kona: The LWG agreed there was a defect.]</i></p>

<p><i>[Tokyo: The LWG crafted the proposed resolution.]</i></p>






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