gcc/testsuite/gcc.dg/wtr-aggr-init-1.c

   1 /* Test for -Wtraditional warnings on automatic aggregate initialization.
   2    Note, gcc should omit these warnings in system header files.
   3    By Kaveh R. Ghazi <ghazi@caip.rutgers.edu> 8/22/2000.  */
   4 /* { dg-do compile } */
   5 /* { dg-options "-Wtraditional" } */
   6
   7 struct foo
   8 {
   9   int i;
  10   long l;
  11 };
  12
  13 struct foo f0 = { 0, 0 };
  14 static struct foo f1 = { 0, 0 };
  15
  16 void
  17 testfunc1 ()
  18 {
  19   struct foo f3 = { 0, 0 }; /* { dg-warning "traditional C rejects automatic" "automatic aggregate initialization" } */
  20   static struct foo f4 = { 0, 0 };
  21
  22   f3 = f4;
  23
  24   __extension__ ({
  25     struct foo f5 = { 0, 0 }; /* { dg-bogus "traditional C rejects automatic" "__extension__ disables warnings" } */
  26     f5.i = 0;
  27   });
  28
  29   {
  30     struct foo f6 = { 0, 0 }; /* { dg-warning "traditional C rejects automatic" "__extension__ reenables warnings" } */
  31     f6.i = 0;
  32   }
  33 }
  34
  35 # 35 "sys-header.h" 3
  36 /* We are in system headers now, no -Wtraditional warnings should issue.  */
  37
  38 struct foo f7 = { 0, 0 };
  39 static struct foo f8 = { 0, 0 };
  40
  41 void
  42 testfunc2 ()
  43 {
  44   struct foo f9 = { 0, 0 };
  45   static struct foo f10 = { 0, 0 };
  46
  47   f9 = f10;
  48 }