mes/scaffold/tests/77-pointer-assign.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"
struct baz {
int i;
};
struct foo {
int **bar;
};
void
add (void *ptab)
{
void ***x = (void***)ptab;
bla:
*(void***)ptab = 0x11223344;
}
void
add2 (void *ptab)
{
void ***x = (void***)ptab;
bla:
*x = 0x22334455;
}
int
test ()
{
int i;
int *p = &i;
struct foo f;
f.bar = &p;
eputs ("f.bar:"); eputs (itoa (f.bar)); eputs ("\n");
add (&f.bar);
eputs ("f.bar:"); eputs (itoa (f.bar)); eputs ("\n");
if (f.bar != 0x11223344) return 1;
add2 (&f.bar);
// FIXME
// eputs ("f.bar:"); eputs (itoa (f.bar)); eputs ("\n");
// if (f.bar != 0x22334455) return 2;
return 0;
}