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<title>Issue 591: Misleading "built-in</title>
<meta property="og:title" content="Issue 591: Misleading &quot;built-in">
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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="591"><a href="lwg-closed.html#591">591</a>. Misleading "built-in</h3>
<p><b>Section:</b> 17.3.5.2 <a href="https://wg21.link/numeric.limits.members">[numeric.limits.members]</a> <b>Status:</b> <a href="lwg-active.html#NAD_Editorial">NAD Editorial</a>
 <b>Submitter:</b> whyglinux <b>Opened:</b> 2006-08-08 <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#numeric.limits.members">issues</a> in [numeric.limits.members].</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>
18.2.1.2 numeric_limits members [lib.numeric.limits.members]
Paragraph 7:
</p>
<blockquote><p>
"For built-in integer types, the number of non-sign bits in the
representation."
</p></blockquote>

<p>
26.1 Numeric type requirements [lib.numeric.requirements]
Footnote:
</p>

<blockquote><p>
"In other words, value types. These include built-in arithmetic types,
pointers, the library class complex, and instantiations of valarray for
value types."
</p></blockquote>

<p>
Integer types (which are bool, char, wchar_t, and the signed and
unsigned integer types) and arithmetic types (which are integer and
floating types) are all built-in types and thus there are no
non-built-in (that is, user-defined) integer or arithmetic types. Since
the redundant "built-in" in the above 2 sentences can mislead that
there may be built-in or user-defined integer and arithmetic types
(which is not correct), the "built-in" should be removed.
</p>


<p id="res-591"><b>Proposed resolution:</b></p>
<p>
18.2.1.2 numeric_limits members [lib.numeric.limits.members]
Paragraph 7:
</p>
<blockquote><p>
"For <del>built-in</del> integer types, the number of non-sign bits in the
representation."
</p></blockquote>

<p>
26.1 Numeric type requirements [lib.numeric.requirements]
Footnote:
</p>

<blockquote><p>
"In other words, value types. These include <del>built-in</del> arithmetic types,
pointers, the library class complex, and instantiations of valarray for
value types."
</p></blockquote>


<p><b>Rationale:</b></p>
<p>
Recommend NAD / Editorial.  The proposed resolution is accepted as editorial.
</p>





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