gcc/testsuite/gcc.dg/c90-array-lval-1.c

   1 /* Test for non-lvalue arrays decaying to pointers: in C99 only.  */
   2 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
   3 /* { dg-do compile } */
   4 /* { dg-options "-std=iso9899:1990 -pedantic-errors" } */
   5
   6 struct s { char c[1]; };
   7
   8 extern struct s foo (void);
   9
  10 void
  11 bar (void)
  12 {
  13   char *t;
  14   (foo ()).c[0]; /* { dg-bogus "warning" "warning in place of error" } */
  15   t = (foo ()).c; /* { dg-bogus "warning" "warning in place of error" } */
  16   (foo ()).c + 1; /* { dg-bogus "warning" "warning in place of error" } */
  17 }
  18 /* { dg-error "non-lvalue" "array not decaying to lvalue" { target *-*-* } 14 }
  19    { dg-error "non-lvalue|incompatible" "array not decaying to lvalue" { target *-*-* } 15 }
  20    { dg-error "non-lvalue|invalid" "array not decaying to lvalue" { target *-*-* } 16 }
  21 */