mes/scaffold/tests/75-struct-union.c
Jan Nieuwenhuizen 1d996c7131 mescc: Tinycc support: struct.union.
* module/language/c99/compiler.mes (struct-field): Add struct tag to
  struct/union types.
  (field-type, field-size, field-offset, field-field, ast-type->type):
  Ascertain struct tag with type.
* (expr->accu*): Do not add struct tag.
* scaffold/tests/75-struct-union.c: Test it.
* scaffold/tests/71-struct-array.c: Update.
2017-07-26 11:36:08 +02:00

60 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"
#include <stdio.h>
union u {
int bar;
int baz;
};
struct foo
{
union u u;
};
struct anon
{
union {
int bar;
int baz;
};
};
int
test ()
{
struct foo f = {2};
printf ("f.u.bar=%d\n", f.u.bar);
if (f.u.bar != 2) return 1;
printf ("f.u.baz=%d\n", f.u.baz);
if (f.u.baz != 2) return 1;
struct anon a = {2};
printf ("a.bar=%d\n", a.bar);
if (a.bar != 2) return 1;
printf ("a.baz=%d\n", a.baz);
if (a.baz != 2) return 1;
return 0;
}