https://bugs.llvm.org/show_bug.cgi?id=40173
Bug ID: 40173
Summary: c11: Rejects well-formed program using . operator on
_Atomic struct in unevalueded context.
Product: clang
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected]
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.
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