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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [CLANG][warnings] With -Wextra the compiler should emit a warning when enumerator and non-enumerator both appear in conditional expression"
href="https://bugs.llvm.org/show_bug.cgi?id=37810">37810</a>
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<th>Summary</th>
<td>[CLANG][warnings] With -Wextra the compiler should emit a warning when enumerator and non-enumerator both appear in conditional expression
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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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>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>konstantin.belochapka@sony.com
</td>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>If extra warnings are enabled ( -Wall is passed as input to clang)
the compiler should warn when a enumerator and a non-enumerator both appear in
a conditional
expression.
Given the following example:
////////////////////////////
enum E { A, B };
int f1(void *p) {
float x=0;
x += (p!=0) ? 2.0: B;
return x;
}
///////////////////////////
$clang test.cpp -Wall -c
// No warnings generated.
$clang test.cpp -Wall -Wextra -c
// No warnings generated.
While
$g++ test.cpp -Wall -c
// No warnings generated.
$g++ test.cpp -Wall -Wextra -c
test.cpp: In function ‘int f1(void*)’:
test.cpp:5: warning: enumeral and non-enumeral type in conditional expression</pre>
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