gcc/testsuite/gcc.dg/lvalue-8.c

   1 /* PR c/66341 */
   2 /* { dg-do compile } */
   3
   4 void
   5 foo (int *p)
   6 {
   7   p = 0;
   8   /* A cast does not yield an lvalue.  */
   9   (int *) p = 0; /* { dg-error "lvalue required as left operand of assignment" } */
  10   /* A cast to a qualified type has the same effect as a cast
  11      to the unqualified version of the type.  */
  12   (int *const) p = 0; /* { dg-error "lvalue required as left operand of assignment" } */
  13   (int *) (char *) p = 0; /* { dg-error "lvalue required as left operand of assignment" } */
  14   (int *) (char *) (int *) p = 0; /* { dg-error "lvalue required as left operand of assignment" } */
  15   (int *) (char *) (int *) (char *) p = 0; /* { dg-error "lvalue required as left operand of assignment" } */
  16   (int *) (double *) p = 0; /* { dg-error "lvalue required as left operand of assignment" } */
  17   (int *) (int *) p = 0; /* { dg-error "lvalue required as left operand of assignment" } */
  18   (int *) (int *const) p = 0; /* { dg-error "lvalue required as left operand of assignment" } */
  19 }