https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88584
Bug ID: 88584
Summary: GCC thinks that the type is complete dispite
shaddowing.
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: anders.granlund.0 at gmail dot com
Target Milestone: ---
Test program (prog.c):
int a[1] = { 0 };
int main()
{
int a;
{
extern int a[];
sizeof (a);
}
}
Compilation command line:
gcc prog.c -Wall -Wextra -std=c11 -pedantic-errors
Observed behaviour:
No error messages are outputed.
Expected behaviour:
An error message. Because the file scope declaration is shaddowed a should
not have a complete type in sizeof (a).
Note:
Clang outputs the expected error message for the program.
