set_make set_make_exp set_make_free span_make span_set spanset_make_exp spanset_make_free

set_make_exp() Set * set_make_exp ( const Datum *  values, int  count, int  maxcount, meosType  basetype, bool  order  ) Return a set from an array of values enabling the data structure to expand. The memory structure depends on whether the value is passed by value or by reference. For example, the memory structure of a set with two values passed by value and passed by reference are, respectively, as follows -------------------------------------------------------------------------- | Header | count | maxcount | bboxsize | ( bbox )_X | Value_0 | Value_1 | -------------------------------------------------------------------------- ---------------------------------------------------------------------- | Header | count | maxcount | bboxsize | ( bbox )_X | offset_0 | ... ---------------------------------------------------------------------- ------------------------------------- ... | offset_1 | Value_0 | Value_1 | ------------------------------------- where Header contains internal information (size, type identifiers, flags) count is the number of current values max count is the maximum number of values bboxsize is the size of the bounding box bbox is the bounding box and X are unused bytes added for double padding. offset_i are offsets from the begining of the struct for the values Parameters [in] values Array of values [in] count Number of elements in the array [in] maxcount Maximum number of elements in the array [in] basetype Type of the values [in] order True when the values should be ordered and duplicates should be removed