[Bug c/43728] New: Warning for redundant static function prototypes

["jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

Prototypes for static functions that aren't used in between the prototype and
the actual static function definition are useless and could be cleaned up, I
think gcc itself has thousands of such useless prototypes.

It isn't hard to add a warning for this.  Given:
static void foo (int);

#ifdef D
void bar (void)
{
  foo (0);
}
#endif

static void foo (int x)
{
  x++;
}

void baz (void)
{
  foo (0);
}

we'd warn about the foo prototype (unless compiling with -DD).


-- 
           Summary: Warning for redundant static function prototypes
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jakub at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43728