gcc/testsuite/gcc.dg/c90-array-lval-5.c

   1 /* Test for non-lvalue arrays: test that the unary '&' operator is not
   2    allowed on them, for both C90 and C99.  */
   3
   4 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
   5 /* { dg-do compile } */
   6 /* { dg-options "-std=iso9899:1990 -pedantic-errors" } */
   7
   8 struct s { char c[1]; };
   9
  10 extern struct s foo (void);
  11 struct s a, b, c;
  12 int d;
  13
  14 void
  15 bar (void)
  16 {
  17   &((foo ()).c); /* { dg-bogus "warning" "warning in place of error" } */
  18   &((d ? b : c).c); /* { dg-bogus "warning" "warning in place of error" } */
  19   &((d, b).c); /* { dg-bogus "warning" "warning in place of error" } */
  20   &((a = b).c); /* { dg-bogus "warning" "warning in place of error" } */
  21 }
  22 /* { dg-error "lvalue" "bad address-of" { target *-*-* } 17 }
  23    { dg-error "lvalue" "bad address-of" { target *-*-* } 18 }
  24    { dg-error "lvalue" "bad address-of" { target *-*-* } 19 }
  25    { dg-error "lvalue" "bad address-of" { target *-*-* } 20 }
  26 */