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<title>Issue 2201: Missing macro entries from C standard library</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="2201"><a href="lwg-closed.html#2201">2201</a>. Missing macro entries from C standard library</h3>
<p><b>Section:</b> C.8 <a href="https://wg21.link/diff.library">[diff.library]</a> <b>Status:</b> <a href="lwg-active.html#NAD_Editorial">NAD Editorial</a>
 <b>Submitter:</b> Kevin McCarty <b>Opened:</b> 2012-02-03 <b>Last modified:</b> 2016-11-28</p>
<p><b>Priority: </b>2
</p>
<p><b>View all other</b> <a href="lwg-index.html#diff.library">issues</a> in [diff.library].</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>
It seems that in C.8 <a href="https://wg21.link/diff.library">[diff.library]</a>, Table 150 the following macros from  [c.limits], Table 31 
are missing:
</p>
<blockquote><pre>
LLONG_MIN 
LLONG_MAX
ULLONG_MAX
</pre></blockquote>
<p>
In addition in C.8 <a href="https://wg21.link/diff.library">[diff.library]</a>, Table 150 the following macros from  [c.limits], Table 32 
are missing:
</p>
<blockquote><pre>
DECIMAL_DIG 
FLT_EVAL_METHOD
</pre></blockquote>
<p>
Furtheron it seems that in C.8 <a href="https://wg21.link/diff.library">[diff.library]</a>, Table 149/150 further macros are missing as well, e.g. 
<code>HUGE_VALF</code>, <code>INFINITY</code>, etc.
</p>

<p><i>[2014-02 Issaquah:]</i></p>

<p>
This is an issue, all of C has not been updated for C99, C99 functions are missing, whole section needs to be overhauled.
<p/>
The issue needs to be updated for functions and other missing items and when that happens the issue title is wrong and
needs to be adapted.
</p>

<p><i>[2016-08 Chicago: Zhihao Yuan comments]</i></p>

<p>
We suggest to either:
</p>
<ol>
<li><p>
Having a paper to rewrite C.5 C standard library by striking
the content shared by C and C++ and leave only the
differences;
</p></li>
<li><p>
Having a paper, or a complete proposed wording to fix
the missing names added between C89 and C99.
</p></li>
</ol>
<p>
For 1), some C11 headers being excluded from C++ (such as
<code>thread.h</code>) need to be added to this section.
</p>

<p><i>[2016-11-12, Issaquah]</i></p>

<p>Sat PM: Thomas will attempt to fix this editorially If he cannot, we will reexamine.</p>

<p><i>[2016-11-16]</i></p>

<p>Resolved as NAD Editorial</p>


<p id="res-2201"><b>Proposed resolution:</b></p>





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