[Bug c/99131] New: gcc doesn't detect missing comma in array initialisation

[dcb314 at hotmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99131

            Bug ID: 99131
           Summary: gcc doesn't detect missing comma in array
                    initialisation
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

For this C code:

const char * a[ 4] = {
        " fred ",
        " bert "
        " harry ",
        " eric "
};

Note missing "," on the bert line. gcc doesn't say very much:

$ /home/dcb/gcc/results/bin/gcc -c -g -O2 -Wall -Wextra feb17f.cc
$

Here is a recent clang doing something more useful:

$ /home/dcb/llvm/clang1200rc1/bin/clang++ -c -g -O2 -Wall -Wextra feb17f.cc
feb17f.cc:7:2: warning: suspicious concatenation of string literals in an array
initialization; did you mean to separate the elements with a comma?
[-Wstring-concatenation]
        " harry ",
        ^
feb17f.cc:6:2: note: place parentheses around the string literal to silence
warning
        " bert "
        ^
1 warning generated.