https://bugs.llvm.org/show_bug.cgi?id=40177
Bug ID: 40177
Summary: c11: Accepts ill-formed program with inline function
definition containing modifiable variable with static
storage duration.
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):
inline void f()
{
static int x;
}
int main()
{
}
Compilation command line:
clang prog.c -Wall -Wextra -std=c11 -pedantic-errors
Observed behaviour:
No error message outputed. Only a warning message outputed.
Expected behaviour:
An error message outputed.
The program violates 6.7.4/3:
"An inline definition of a function with external linkage shall not contain
a definition of a modifiable object with static or thread storage
duration,
and shall not contain a reference to an identifier with internal linkage."
Since -pedantic-errors is used we should get an error instead of a warning.
Note:
GCC gives the expected error message.
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