[cfe-dev] -Wcast-qual not working

[Chengnian Sun]

Hi,

Does Clang support the warning flag -Wcast-qual? I have the following
program,

$: cat t.c
int * f (const int*a) {
  return (int *)a;
}


$: clang-trunk -Weverything -c t.c
t.c:1:7: warning: no previous prototype for function 'f'
[-Wmissing-prototypes]
int * f (const int*a) {
      ^
1 warning generated.
$:
$: gcc-trunk -Wcast-qual -c t.c
t.c: In function ‘f’:
t.c:2:10: warning: cast discards ‘const’ qualifier from pointer target type
[-Wcast-qual]
   return (int *)a;
          ^



-- 
Best Regards.

Chengnian SUN.
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