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/* run.config*
STDOPT: +"-ulevel 22" +"-then -no-val-warn-pointer-subtraction"
*/
// #include <stdio.h>
int a;
int t[25];
void main1()
{
int i,j;
for (i=-10; i< 10; i++)
{
t[i+10] = (int*)(i+10)-(int*)10;
// printf("%d\n",(int*)(i+10)-(int*)10);
}
j = -i;
// printf("%d %d\n",(int)&a,(int)(&a-(int*)0));
}
volatile int vol;
void main2() {
int x, y;
int d;
int *p1 = &x;
int *p2 = &y;
if (vol) {
d = p1 - p2;
Frama_C_show_each(d);
}
p2 = (char*)&x + 3;
d = p1 - p2;
Frama_C_show_each(d);
p2 = (char*)&x - 3;
d = p1 - p2;
Frama_C_show_each(d);
if (vol) {
p1 = &x+1;
p2 = &x+7;
} else {
p1 = &y+8;
p2 = &y+19;
}
d = p2 - p1;
Frama_C_show_each(d);
d = p2 - p2;
Frama_C_show_each(d);
p1 = &x + (int)&x;
p2 = &x;
d = p2 - p1;
Frama_C_show_each(d);
int i = vol;
//@ assert 0 <= i <= 4;
p1 = &x + i;
p2 = p1 + 1;
d = p2 - p1;
Frama_C_show_each(d);
//@ assert d == 1;
}
void main() {
main1();
main2();
}
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