- function tests whether ARRAY is a heap and returns 1 if so, 0
- otherwise. Uses COMPARE to compare elements, passing AUX as
- auxiliary data. */
-int is_heap (const void *array, size_t count, size_t size,
+ function tests whether ARRAY is a heap and returns true if so,
+ false otherwise. Uses COMPARE to compare elements, passing
+ AUX as auxiliary data. */
+bool is_heap (const void *array, size_t count, size_t size,