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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - -Wformat warns when using format specifier macros from MS headers"
href="https://llvm.org/bugs/show_bug.cgi?id=23412">23412</a>
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<th>Summary</th>
<td>-Wformat warns when using format specifier macros from MS headers
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>-New Bugs
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>hans@chromium.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>For example:
#include <inttypes.h>
#include <stdio.h>
void f(uint32_t i) {
printf("%" PRIx32 "\n", i);
}
Generates this:
d:\src\tmp\a.c:5:26: warning: format specifies type 'unsigned long' but the
argument has type 'uint32_t' (aka 'unsigned int') [-Wformat]
printf("%" PRIx32 "\n", i);
~~~ ^
1 warning generated.
It seems 32-bit format specifier macros are prefixed with 'l' in the Visual
Studio headers.</pre>
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</p>
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