this version uses int64_t (signed) to signify end-of-lists (-1). It also needs its own compare function for the qsort. I didn't merge this into existing code which uses uint64_t. (too lazy)
this version uses int64_t (signed) to signify end-of-lists (-1). It also needs its own compare function for the qsort. I didn't merge this into existing code which uses uint64_t. (too lazy)