https://bugs.llvm.org/show_bug.cgi?id=40249
Bug ID: 40249
Summary: c11: Rejects valid program having cast operator with
_Atomic int type
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()
{
(_Atomic int)0;
}
Compilation command line:
clang prog.c -Wall -Wextra -std=c11 -pedantic-errors
Observed beaviour:
The following error message was outputed:
error: used type '_Atomic(int)' where arithmetic or pointer type is
required
Expected behaviour:
No error message outputed.
The program is well-formed.
_Atomic qualification of the scalar type int is allowed here.
See 6.5.4/2:
"Unless the type name specifies a void type, the type name shall
specify atomic, qualified, or unqualified scalar type, and the operand
shall have scalar type."
Note:
GCC accepts the program without outputing any error message.
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