You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
#include "config.h"
#include "system.h"
XDELETE (pset);
}
+/* Returns nonzero if PSET contains P. P must be nonnull.
+
+ Collisions are resolved by linear probing. */
+int
+pointer_set_contains (struct pointer_set_t *pset, void *p)
+{
+ size_t n = hash1 (p, pset->n_slots, pset->log_slots);
+
+ while (true)
+ {
+ if (pset->slots[n] == p)
+ return 1;
+ else if (pset->slots[n] == 0)
+ return 0;
+ else
+ {
+ ++n;
+ if (n == pset->n_slots)
+ n = 0;
+ }
+ }
+}
+
/* Subroutine of pointer_set_insert. Inserts P into an empty
element of SLOTS, an array of length N_SLOTS. Returns nonzero
if P was already present in N_SLOTS. */