view gcc/testsuite/c-c++-common/Wimplicit-fallthrough-20.c @ 16:04ced10e8804

gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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/* PR c/7652 */
/* { dg-do compile } */
/* { dg-options "-Wimplicit-fallthrough" } */

int
f (int i)
{
  switch (i)
    {
    case -1:
      __attribute__((fallthrough));
    default:
      __attribute__((fallthrough));
    case 1:
      return 6;
    case 2 ... 4:
      __attribute__((fallthrough));
    case 5:
      return 7;
    }
  return 0;
}

int
g (int i)
{
  switch (i)
    {
    case -1:
      __attribute__((used)); /* { dg-warning "ignored|only attribute" } */
    default:
      __attribute__((used)); /* { dg-warning "ignored|only attribute" } */
    case 1:
      return 6;
    case 2 ... 4:
      __attribute__((used)); /* { dg-warning "ignored|only attribute" } */
    case 5:
      return 7;
    }
  return 0;
}