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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Empty macro arguments cause whitespace to go missing"
href="http://llvm.org/bugs/show_bug.cgi?id=15675">15675</a>
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<th>Summary</th>
<td>Empty macro arguments cause whitespace to go missing
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>3.2
</td>
</tr>
<tr>
<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>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>-New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>harald@gigawatt.nl
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>#define A()
#define B(x)x
#define C(x) x
#define STR(x) STR_(x)
#define STR_(x) #x
STR([ A()])
STR([ B()])
STR([ C()])
is preprocessed to
"[ ]"
"[]"
"[]"
It should be "[ ]" for all three lines, which is what gcc and mcpp do.</pre>
</div>
</p>
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