mes/scaffold/tests/77-pointer-assign.c
Jan Nieuwenhuizen abd1272a31 mescc: Tinycc support: foo *bar[baz].
* module/language/c99/compiler.mes (decl->info): Support foo *bar[baz].
* module/language/c99/compiler.mes (push-global): Support push of -2,
  -1.  Change signature to take info.  Update callers.
  (push-global-address): Change signature to take info.  Update callers.
2017-07-28 18:04:39 +02:00

92 lines
1.8 KiB
C

/* -*-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"
struct baz {
int i;
};
struct foo {
int **bar;
};
void
add0 (void *ptab)
{
void **pp = *(void***)ptab;
bla:
pp[0] = 0x11223344;
}
void
add1 (void *ptab)
{
void ***x = (void***)ptab;
bla:
*(void***)ptab = 0x22334455;
}
void
add2 (void *ptab)
{
void ***x = (void***)ptab;
bla:
*x = 0x33445566;
}
struct foo *hash_ident[10];
void *
memset (void *s, int c, int n)
{
char *p = s;
while (n--) *p++ = c;
return s;
}
int
test ()
{
int i = 1;
int *p = &i;
struct foo f;
f.bar = &p;
eputs ("f.bar:"); eputs (itoa (f.bar)); eputs ("\n");
add0 (&f.bar);
eputs ("f.bar:"); eputs (itoa (*f.bar)); eputs ("\n");
if (*f.bar != 0x11223344) return 1;
add1 (&f.bar);
eputs ("f.bar:"); eputs (itoa (f.bar)); eputs ("\n");
if (f.bar != 0x22334455) return 2;
add2 (&f.bar);
eputs ("f.bar:"); eputs (itoa (f.bar)); eputs ("\n");
if (f.bar != 0x33445566) return 3;
hash_ident[0] = 10;
*hash_ident = 0;
memset (hash_ident, 0, 10);
return 0;
}