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<title>Issue 546: [tr1] _Longlong and _ULonglong are integer types</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">NAD</a> status.</em></p>
<h3 id="546"><a href="lwg-closed.html#546">546</a>. [tr1] _Longlong and _ULonglong are integer types</h3>
<p><b>Section:</b> 5.1.1 [tr1::tr.rand.req] <b>Status:</b> <a href="lwg-active.html#NAD">NAD</a>
 <b>Submitter:</b> Matt Austern <b>Opened:</b> 2006-01-10 <b>Last modified:</b> 2016-10-31</p>
<p><b>Priority: </b>Not Prioritized
</p>
<p><b>View all issues with</b> <a href="lwg-status.html#NAD">NAD</a> status.</p>
<p><b>Discussion:</b></p>
<p>
The TR sneaks in two new integer types, _Longlong and _Ulonglong, in [tr.c99].
The rest of the TR should use that type.  I believe this affects two places.
First, the random number requirements, 5.1.1/10-11, lists all of the types with
which template parameters named IntType and UIntType may be instantiated.
_Longlong (or "long long", assuming it is added to C++0x) should be added to the
IntType list, and UIntType (again, or "unsigned long long") should be added to
the UIntType list.  Second, 6.3.2 lists the types for which hash&lt;&gt; is
required to be instantiable. _Longlong and _Ulonglong should be added to that
list, so that people may use long long as a hash key.
</p>

<p><i>[
2009-07 Frankfurt
]</i></p>


<blockquote>
<p>
We are not going to fix TR1.
</p>
<p>
The paper "long long goes to the library" addresses the integration of
long long into the C++0x library.
</p>
<p>
Move to NAD.
</p>
</blockquote>



<p id="res-546"><b>Proposed resolution:</b></p>
<p>
</p>





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