gcc/testsuite/gcc.dg/const-2.c

   1 /* PR tree-optimization/83559 - -Wsuggest-attribute=const conflicts with
   2    -Wattributes warning about const attribute on function returning void
   3    { dg-do compile { target nonpic } }
   4    { dg-options "-O2 -Wsuggest-attribute=const" } */
   5
   6 int f_i_v (void)    /* { dg-warning "candidate for attribute .const." } */
   7 {
   8   return 0;
   9 }
  10
  11 int f_i ()          /* { dg-warning "candidate for attribute .const." } */
  12 {
  13   return 0;
  14 }
  15
  16 void f_v_v (void)   /* { dg-bogus "candidate" } */
  17 {
  18 }
  19
  20 void f_v ()         /* { dg-bogus "candidate" } */
  21 {
  22 }