mes/scaffold/tests/76-pointer-arithmetic.c
Jan Nieuwenhuizen c7547dfd52 mescc: Tinycc support: pointer arithmetic.
* module/language/c99/compiler.mes (ident->size, expr->size): New function.
  (expr->accu): Use them for ++,--,add, sub.
  (i386:type-alist): Set void size to 1.
* scaffold/tests/71-struct-array.c (test):
* scaffold/tests/76-pointer-arithmetic.c: Test it.
* make.scm (add-scaffold-test): Build it.
2017-07-28 10:40:30 +02:00

48 lines
1.3 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"
int
test ()
{
char *pc = 0;
void *pv = 0;
int *pi = 0;
char **ppc = 0;
void **ppv = 0;
int **ppi = 0;
if (++pc != 1) return 1;
if (++pv != 1) return 2;
if (++pi != 4) return 3;
if (++ppc != 4) return 4;
if (++ppv != 4) return 5;
if (++ppi != 4) return 6;
if (pc + 1 != 2) return 7;
if (pv + 1 != 2) return 8;
if (pi + 1 != 8) return 9;
if (ppc + 1 != 8) return 10;
if (ppv + 1 != 8) return 11;
if (ppi + 1 != 8) return 12;
return 0;
}