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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - c11: Accepts invalid program with function having internal linkage used but not defined."
href="https://bugs.llvm.org/show_bug.cgi?id=40211">40211</a>
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<th>Summary</th>
<td>c11: Accepts invalid program with function having internal linkage used but not defined.
</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>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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<p>
<div>
<pre>Test case (prog.c):
static void f();
int main()
{
f;
}
Compilation command line:
clang prog.c -Wall -Wextra -std=c11 -pedantic-errors
Observed behaviour:
No error message outputed. Only warning messages outputed.
Expected bebehaviour:
An error message outputed.
The program is invalid by 6.9/3:
"... Moreover, if an identifier declared with internal linkage is used in
an
expression (other than as a part of the operand of a sizeof or _Alignof
operator whose result is an integer constant), there shall be exactly one
external definition for the identifier in the translation unit."
Note:
GCC gives the expected error message.</pre>
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