gcc/testsuite/gcc.dg/switch-6.c


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/* Test diagnostics for switch statements and labels therein.  Test
   for case ranges with -pedantic.  */
/* Origin: Joseph Myers <joseph@codesourcery.com> */
/* { dg-do compile } */
/* { dg-options "-pedantic -std=gnu23" } */

void
f (int a)
{
  switch (a)
    {
    case 0 ... 0: ; /* { dg-warning "ISO C does not support range expressions in switch statements before C2Y" } */
    }
}