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<base href="https://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - clang++ cannot cast double to unsigned correctly."
href="https://llvm.org/bugs/show_bug.cgi?id=24599">24599</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>clang++ cannot cast double to unsigned correctly.
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>3.5
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>-New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jtony@ca.ibm.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Clang cast double to unsigned wrongly, while g++ can cast it correctly.
-------------------------------------------------------------------------
-bash-4.2$ cat test.C
#include <iostream>
using namespace std;
int main(){
double d1 = 10.0L;
cout << "d1:"<<d1<<" unsigned:"<< static_cast<unsigned>(d1) << endl;
}
-------------------------------------------------------------------------
g++ test result:
-------------------------------------------------------------------------
-bash-4.2$ g++ test.C
-bash-4.2$ ./a.out
d1:10 unsigned:10
-------------------------------------------------------------------------
clang++ test result:
-------------------------------------------------------------------------
-bash-4.2$ clang++ test.C
-bash-4.2$ ./a.out
d1:10 unsigned:0
-------------------------------------------------------------------------
The above test is done on Red Hat Enterprise Linux Server release 7.1 Beta
(Maipo). This problem exists in both clang++ 3.5 and clang++ 3.6.</pre>
</div>
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