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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - c11: Rejects well-formed program using . operator on _Atomic struct in unevalueded context."
href="https://bugs.llvm.org/show_bug.cgi?id=40173">40173</a>
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<th>Summary</th>
<td>c11: Rejects well-formed program using . operator on _Atomic struct in unevalueded context.
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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>All
</td>
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<th>OS</th>
<td>All
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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
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<th>Component</th>
<td>-New Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>anders.granlund.0@gmail.com
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<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
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<pre>Test case (prog.c):
int main(void)
{
_Atomic struct S { int x; } s;
sizeof (s.x);
}
Compilation command line:
clang prog.c -Wall -Wextra -std=c11 -pedantic-errors
Observed behaviour:
The following error message was outputed:
prog.c:4:12: error: member reference base type '_Atomic(struct S)' is not a
structure or union
sizeof (s.x);
~^~
1 error generated.
Expected behaviour:
No error message outputed.
Note:
GCC accepts the program with no error message ourputed.</pre>
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