mes/scaffold/tests/72-typedef-struct-def.c

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/* -*-comment-start: "//";comment-end:""-*-
* Mes --- Maxwell Equations of Software
* Copyright © 2017 Jan Nieuwenhuizen <janneke@gnu.org>
*
* This file is part of Mes.
*
* Mes is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* Mes is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Mes. If not, see <http://www.gnu.org/licenses/>.
*/
#include "30-test.i"
#include <stdio.h>
typedef struct foo
{
int i;
} foo;
typedef struct
{
int i;
struct foo f;
struct foo *p;
} bar;
//NYACC
//#define offsetof(type, field) ((size_t) &((type *)0)->field)
#if __MESC__
#define offsetof(type, field) (&((type *)0)->field)
#else
#define offsetof(type, field) ((size_t)&((type *)0)->field)
#endif
int
test ()
{
foo f = {1};
printf ("f.i=%d\n", f.i);
bar b = {1, 2, &f};
printf ("b.i=%d\n", b.i);
printf ("b.f.i=%d\n", b.f.i);
if (b.f.i != 2) return 1;
printf ("b.p->i=%d\n", b.p->i);
if (b.p->i != 1) return 1;
bar* p = &b;
p->i = 2;
printf ("p->i=%d\n", b.i);
p->i++;
printf ("p->i=%d\n", b.i);
p->i--;
printf ("p->i=%d\n", b.i);
printf ("p->f.i=%d\n", p->f.i);
if (p->f.i != 2) return 1;
printf ("p->p->i=%d\n", p->p->i);
if (p->p->i != 1) return 1;
bar** pp = &p;
(*pp)->i = 3;
printf ("(*pp)->i=%d\n", b.i);
printf ("sizeof i:%d\n", sizeof (p->i));
if ((sizeof p->i) != 4) return 1;
printf ("offsetof g=%d\n", (offsetof (bar ,f)));
if ((offsetof (bar ,f)) != 4) return 1;
printf ("(*pp)->b.i=%d\n", (*pp)->f.i);
if ((*pp)->f.i != 2) return 1;
return 0;
}