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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - c11: Rejects valid program dereferencing pointer with incomplete reference type."
href="https://bugs.llvm.org/show_bug.cgi?id=40197">40197</a>
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<th>Summary</th>
<td>c11: Rejects valid program dereferencing pointer with incomplete reference type.
</td>
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<th>Product</th>
<td>clang
</td>
</tr>
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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>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>-New Bugs
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>anders.granlund.0@gmail.com
</td>
</tr>
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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):
struct S *p;
void f(void);
int main()
{
f();
*p;
}
struct S { int x; };
void f()
{
static struct S s = { 0 };
p = &s;
}
Compilation command line:
clang prog.c -Wall -Wextra -std=c11 -pedantic-errors
Observed behaviour:
The following error message was outputed:
prog.c:9:5: error: incomplete type 'struct S' where a complete type is
required
*p;
^
prog.c:1:8: note: forward declaration of 'struct S'
struct S *p;
^
Expected behaviour:
No error message outputed.
I can't find anything in the standard that makes the this program invalid.</pre>
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