datum_hash datum_hash_extended geoset_srid set_find_value set_val_n spanset_find_value spanset_sp_n

spanset_find_value() bool spanset_find_value ( const SpanSet *  ss, Datum  v, int *  loc  ) General functions for set of disjoint spans. Return the location of a value in a span set using binary search. If the value is found, the index of the span is returned in the output parameter. Otherwise, return a number encoding whether the value is before between two spans, or after the span set. For example, given a value composed of 3 spans and a value v, the result of the function is as follows: 0 1 2 |-----| |-----| |-----| 1) v^ => loc = 0 2) v^ => loc = 0 3) v^ => loc = 1 4) v^ => loc = 2 5) v^ => loc = 3 Parameters [in] ss Span set [in] v Value [out] loc Location Returns Return true if the value is contained in the span set