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# include "mut.h"
int glob;
int *globp;
int f(int *a, int b, int **c)
{
int *x, *y, *z;
x = a;
*x = 3; /* 1. modifies *a */
x = a;
y = x;
*y = 4; /* 2. modifies *a */
globp = a; /* 3. modifies *globp */
if (*x == 3) return 3; /* 4. returns aliasing globp */
if (*x == 4)
{
globp = z; /* 5, 6. z use before def, modifies globp */
return 4; /* okay */
}
*globp = 4; /* 7, 8. modifies *a, *globp */
x = globp;
*x = 7; /* 9, 10. modifies *globp, *a */
x = &glob;
*x = 4; /* 11. modifies glob */
x = &b; /* okay */
*x = 3; /* okay */
b = 3; /* okay */
*x = b; /* okay */
x = *c; /* okay */
*x = 4; /* 12. modifies **c */
a = *c; /* okay */
*a = 4; /* 13. modifies **c (but not *a) */
*globp = 3; /* 14, 15. modifies *globp, modifies *a */
return 4; /* 16. returns with globp aliasing a */
}
int h (mut a, mut b)
{
mut c = mut_create();
mut_mod (a); /* 17. modifies a */
a = b;
mut_mod (a); /* 18. modifies b */
b = c;
mut_mod (b); /* okay */
return 3; /* 19. locally allocated storage c not released */
}
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