gcc/testsuite/gcc.dg/attr-nest.c

   1 /* { dg-do compile } */
   2
   3 #define ATTR_PRINTF __attribute__ ((format (printf, 1, 2)))
   4 #define ATTR_USED __attribute__ ((used))
   5
   6 void bar (int, ...);
   7
   8 /* gcc would segfault on the nested attribute.  */
   9 void foo (void)
  10 {
  11   bar (0, (void (*ATTR_PRINTF) (const char *, ...)) 0);
  12 }
  13
  14 /* For consistency, unnamed decls should give the same warnings as
  15    named ones.  */
  16 void proto1 (int (*ATTR_USED) (void)); /* { dg-warning "attribute ignored" } */
  17 void proto2 (int (*ATTR_USED bar) (void)); /* { dg-warning "attribute ignored" } */