123 lines
2.5 KiB
C
123 lines
2.5 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2017,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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*
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* This file is part of GNU Mes.
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*
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* GNU Mes is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* GNU Mes is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <mes/lib.h>
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#include <stdio.h>
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typedef struct foo
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{
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int i;
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} foo;
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typedef struct
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{
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int i;
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struct foo f;
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struct foo *p;
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} bar;
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bar baz[2] = { 1, 2, 3, 4, 5, 6 };
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bar *list[2];
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//NYACC
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//#define offsetof(type, field) ((size_t) &((type *)0)->field)
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#if __MESC__
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#define offsetof(type, field) (&((type *)0)->field)
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#else
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#define offsetof(type, field) ((size_t)&((type *)0)->field)
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#endif
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int
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main ()
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{
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foo f = { 1 };
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printf ("f.i=%d\n", f.i);
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bar b = { 1, 2, &f };
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printf ("b.i=%d\n", b.i);
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printf ("b.f.i=%d\n", b.f.i);
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if (b.f.i != 2)
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return 1;
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printf ("b.p->i=%d\n", b.p->i);
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if (b.p->i != 1)
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return 2;
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bar *p = &b;
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p->i = 2;
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printf ("p->i=%d\n", b.i);
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p->i++;
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printf ("p->i=%d\n", b.i);
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p->i--;
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printf ("p->i=%d\n", b.i);
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printf ("p->f.i=%d\n", p->f.i);
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if (p->f.i != 2)
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return 3;
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printf ("p->p->i=%d\n", p->p->i);
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if (p->p->i != 1)
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return 4;
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bar **pp = &p;
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(*pp)->i = 3;
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printf ("(*pp)->i=%d\n", b.i);
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printf ("sizeof i:%d\n", sizeof (p->i));
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if ((sizeof p->i) != 4)
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return 5;
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printf ("offsetof g=%d\n", (offsetof (bar, f)));
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#if __MESC__
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//if ((offsetof (bar ,f)) != 4) return 6;
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//#define offsetof(type, field) (&((type *)0)->field)
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if ((&((bar *) 0)->f) != 4)
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return 6;
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#else
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if ((offsetof (bar, f)) != 4)
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return 6;
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#endif
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printf ("(*pp)->b.i=%d\n", (*pp)->f.i);
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if ((*pp)->f.i != 2)
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return 7;
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if (baz[0].i != 1)
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return 8;
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printf ("baz[0].f.i=%d\n", baz[0].f.i);
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if (baz[0].f.i != 2)
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return 9;
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printf ("baz[1].i=%d\n", baz[1].i);
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if (baz[1].i != 4)
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return 10;
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printf ("baz[1].f.i=%d\n", baz[1].f.i);
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if (baz[1].f.i != 5)
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return 11;
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return 0;
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}
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