https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119001
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
union U {
int i;
char a[];
};
union U u[2] = {{.a = "12345"}};
is accepted but does the wrong thing (the u[0] content overlaps into the u[1]
one).
union U {
int i;
char a[];
};
union U u[2] = {{.a = "12345"},{.i = 3 }};
ICEs in a different spot.
Note,
struct U {
int i;
char a[];
};
struct U u[2] = {{.a = "123"}};
is rejected with
pr119001-2.c:5:24: error: initialization of flexible array member in a nested
context
5 | struct U u[2] = {{.a = "123"}};
| ^~~~~
pr119001-2.c:5:24: note: (near initialization for ‘u[0]’)
so I think we should emit the same error for the union case as well.
