/*      $NetBSD: msg_171.c,v 1.9 2023/07/07 19:45:22 rillig Exp $       */
# 3 "msg_171.c"

// Test for message: cannot assign to '%s' from '%s' [171]

/* lint1-extra-flags: -X 351 */

struct s {
       int member;
};

/*ARGSUSED*/
void
example(int i, void *vp, struct s *s)
{
       /* expect+1: error: cannot assign to 'int' from 'struct s' [171] */
       i = *s;
       /* expect+1: error: cannot assign to 'struct s' from 'int' [171] */
       *s = i;

       /* expect+1: error: cannot assign to 'pointer to void' from 'struct s' [171] */
       vp = *s;
       /* expect+1: error: cannot assign to 'struct s' from 'pointer to void' [171] */
       *s = vp;
}

/*
* C99 6.5.2.5 says that a compound literal evaluates to an unnamed object
* with automatic storage duration, like any normal named object.  It is an
* lvalue, which means that it is possible to take the address of the object.
* Seen in external/mpl/bind/dist/lib/dns/rbtdb.c, update_rrsetstats.
*
* Before init.c 1.111 from 2021-03-23, lint could not handle these nested
* initializations (the outer one for the variable 'p', the inner one for the
* compound literal) and wrongly complained about a type mismatch between
* 'struct point' and 'pointer to struct point'.
*/
void
pointer_to_compound_literal(void)
{
       struct point {
               int x;
               int y;
       };
       struct point *p = &(struct point){
               12, 5,
       };

       /*
        * A sizeof expression is another way to create nested
        * initializations.
        */
       struct point p2 = {
               (int)sizeof(struct point){
                       (int)sizeof(struct point){
                               (int)sizeof(struct point){
                                       (int)sizeof(struct point){
                                               0,
                                               0,
                                       },
                                       0,
                               },
                               0,
                       },
                       0,
               },
               0,
       };
}