https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86894
Bug ID: 86894
Summary: error for a zero-length array initialized with empty
braced list
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: msebor at gcc dot gnu.org
Target Milestone: ---
As discussed in the review at
https://gcc.gnu.org/ml/gcc-patches/2018-08/msg00601.html, when -Wpedantic is
used, GCC rejects the following program with a hard error when it should be
accepted with a pedantic warning.
$ cat e.c && gcc -S -Wall -Wextra -Wpedantic e.c
char a[] = { };
e.c:1:12: warning: ISO C forbids empty initializer braces [-Wpedantic]
char a[] = { };
^
e.c:1:6: error: zero or negative size array ‘a’
char a[] = { };
^
