mes/scaffold/tests/7r-sign-extend.c

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/* -*-comment-start: "//";comment-end:""-*-
* Mes --- Maxwell Equations of Software
* Copyright © 2018 Jan (janneke) 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/>.
*/
char global_c = -1;
struct foo {char type;};
int
main ()
{
{
char c = -1;
int i = c;
if (i != -1)
return 1;
}
{
int i = global_c;
if (i != -1)
return 2;
}
{
char c = -1;
int ints[2] = {c, 0};
if (ints[0] != -1)
return 3;
}
{
char c = -1;
int i = c;
if (i != -1)
return 4;
}
{
char c = -1;
int i = c;
if (i != -1)
return 5;
}
{
char a[2] = {-1, -129};
int i = a[0];
if (i != -1)
return 6;
if (a[0] != -1)
return 7;
}
{
struct foo f = {-1};
int i = f.type;
if (i != -1)
return 8;
struct foo *g = &f;
i = g->type;
if (i != -1)
return 9;
}
{
char c = -1;
char *p = &c;
int i = *p;
if (i != -1)
return 10;
}
{
int i = -129;
i = (char)i;
if (i != 127)
return 11;
}
{
unsigned char b = -129;
int i = b;
if (i != 127)
return 12;
}
return 0;
}