gcc/testsuite/gcc.dg/c99-fordecl-3.c

   1 /* Test for C99 declarations in for loops.  Test constraints: struct
   2    and union tags can't be declared there (affirmed in response to
   3    DR#277).  */
   4 /* Origin: Joseph Myers <joseph@codesourcery.com> */
   5 /* { dg-do compile } */
   6 /* { dg-options "-std=iso9899:1999 -pedantic-errors" } */
   7
   8 void
   9 foo (void)
  10 {
  11   for (struct s { int p; } *p = 0; ;) /* { dg-error "'struct s' declared in 'for' loop initial declaration" } */
  12     ;
  13   for (union u { int p; } *p = 0; ;) /* { dg-error "'union u' declared in 'for' loop initial declaration" } */
  14     ;
  15 }