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<title>Issue 2281: C99 cross-reference typo in [using.linkage]</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#NAD_Editorial">NAD Editorial</a> status.</em></p>
<h3 id="2281"><a href="lwg-closed.html#2281">2281</a>. C99 cross-reference typo in [using.linkage]</h3>
<p><b>Section:</b> 16.4.3.3 <a href="https://wg21.link/using.linkage">[using.linkage]</a> <b>Status:</b> <a href="lwg-active.html#NAD_Editorial">NAD Editorial</a>
 <b>Submitter:</b> Chris Sharpe <b>Opened:</b> 2013-08-23 <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#using.linkage">issues</a> in [using.linkage].</p>
<p><b>View all issues with</b> <a href="lwg-status.html#NAD Editorial">NAD Editorial</a> status.</p>
<p><b>Discussion:</b></p>
<p>
There is a footnote at section 16.4.3.3 <a href="https://wg21.link/using.linkage">[using.linkage]</a>/2 that reads:
</p>
<blockquote><p>
"The only reliable way to declare an object or function signature from the Standard C library is by including 
the header that declares it, notwithstanding the latitude granted in 7.1.7 of the C Standard."
</p></blockquote>
<p>
There is no section 7.1.7 in the C99 Standard (or C11 final draft). I think the relevant section is:
</p>
<blockquote><p>
"Provided that a library function can be declared without reference to any type defined in a header, it is also 
permissible to declare the function and use it without including its associated header."
</p></blockquote>
<p>
at 7.1.4/2 from C99.
</p>

<p><i>[2013-09 Chicago]</i></p>

<p>
Moved to NAD Editorial.
</p>



<p id="res-2281"><b>Proposed resolution:</b></p>
<p>This wording is relative to N3691.</p>

<ol>
<li><p>Edit footnote 182, 16.4.3.3 <a href="https://wg21.link/using.linkage">[using.linkage]</a> as indicated:</p>

<blockquote>
<p>
The only reliable way to declare an object or function signature from the Standard C library is by including the header
that declares it, notwithstanding the latitude granted in <del>7.1.7</del><ins>7.1.4</ins> of the C Standard.
</p>
</blockquote>
</li>

</ol>





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