+
−
+
−#define INTSTACKSIZE 64
+
−struct intstack {
+
−  int vals[INTSTACKSIZE];
+
−  unsigned pos;
+
−};
+
−
+
−void intstack_init(struct intstack *is);
+
−void intstack_push(struct intstack *, int);
+
−int intstack_pop(struct intstack *);
+
−int intstack_top(const struct intstack *);
+
−
+
−
+
−struct stringdict;
+
−
+
−struct permutation {
+
−  int *v;
+
−  int num;
+
−};
+
−
+
−struct permutation *mySort(const struct stringdict *);
+
−void permutation_destroy(struct permutation *);