intset *intsetNew(void);
intset *intsetAdd(intset *is, int64_t value, uint8_t *success);
-intset *intsetRemove(intset *is, int64_t value, uint8_t *success);
+intset *intsetRemove(intset *is, int64_t value, int *success);
uint8_t intsetFind(intset *is, int64_t value);
int64_t intsetRandom(intset *is);
uint8_t intsetGet(intset *is, uint32_t pos, int64_t *value);