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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Only ignore warnings on macro bodies, not macro arguments"
href="http://llvm.org/bugs/show_bug.cgi?id=20536">20536</a>
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<th>Summary</th>
<td>Only ignore warnings on macro bodies, not macro arguments
</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>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Frontend
</td>
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<th>Assignee</th>
<td>rtrieu@google.com
</td>
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<th>Reporter</th>
<td>rtrieu@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dblaikie@gmail.com, llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>#define assert(x) if(x) return;
bool foo();
void test(bool x, bool y, bool z, unsigned a) {
assert(x || y && z); // needs -Wparentheses warning here
if (x || y && z) {} // warns here
assert(a >= 0); // needs -Wtautological-compare here
if (a >= 0) {} // warns here
}
The two asserts above should generate warnings since the entire expression that
should be warned on is inside the macro argument.
r214672 & r214671 fixed two issues that were not caught by the current Clang
warnings.</pre>
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