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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - clang-cl doesn't support the ui32 type suffix properly"
href="http://llvm.org/bugs/show_bug.cgi?id=20008">20008</a>
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<th>Summary</th>
<td>clang-cl doesn't support the ui32 type suffix properly
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>C++
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>ehsan@mozilla.com
</td>
</tr>
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<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
<div>
<pre>The headers that ship with MSVC define UINT32_MAX as 0xffffffffui32. I'm not
100% sure what "ui32" is but I assume it denotes a uint32_t type. It seems
like this confuses clang-cl a bit, which makes it a pain in places where for
example we call std::min with a uint32_t argument and a UINT32_MAX-1 argument.
Here is a minimal test case demonstrating the issue:
#include <stdint.h>
template<class T> T min(T, T);
#define MAX 0xffffffffui32
void test() {
uint32_t a;
min(a, MAX - 1);
}
$ ./bin/clang-cl -c test.cpp
test.cpp(6,3) : error: no matching function for call to 'min'
min(a, MAX - 1);
^~~
test.cpp(2,21) : note: candidate template ignored: deduced conflicting types
for parameter 'T' ('unsigned int' vs. 'unsigned long')
template<class T> T min(T, T);
^
1 error generated.</pre>
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