bbox_expand datum_collinear datumsegm_interpolate datumsegm_locate ensure_increasing_timestamps ensure_valid_tinstarr ensure_valid_tinstarr_common float_collinear floatsegm_interpolate floatsegm_locate intersection_tcontseq_tdiscseq intersection_tdiscseq_tcontseq intersection_tdiscseq_tdiscseq intersection_tinstant_tsequence intersection_tsequence_tinstant synchronize_tsequence_tsequence tcontseq_find_timestamptz tcontseq_to_discrete tcontseq_to_linear tcontseq_to_step tdiscseq_find_timestamptz tdiscseq_set_interp tfloatsegm_intersection_value tinstant_to_tsequence tinstant_to_tsequence_free tinstarr_normalize tnumbersegm_intersection tnumberseq_cont_twavg tnumberseq_disc_twavg tnumberseq_integral tnumberseq_shift_scale_value tnumberseq_shift_scale_value_iter tnumberseq_twavg tnumberseq_valuespans tpointseq_make_coords tsegment_intersection tsegment_intersection_value tsegment_value_at_timestamptz tseqarr2_to_tseqarr tsequence_cmp tsequence_compact tsequence_copy tsequence_duration tsequence_end_timestamptz tsequence_eq tsequence_from_base_tstzset tsequence_from_base_tstzspan tsequence_hash tsequence_in tsequence_insts_p tsequence_join tsequence_join_test tsequence_make tsequence_make_exp tsequence_make_exp1 tsequence_make_free tsequence_make_free_exp tsequence_make_valid tsequence_max_inst tsequence_max_val tsequence_min_inst tsequence_min_val tsequence_minmax_inst tsequence_norm_test tsequence_out tsequence_restart tsequence_segments tsequence_segments_iter tsequence_seqs tsequence_set_interp tsequence_set_tstzspan tsequence_shift_scale_time tsequence_shift_scale_time_iter tsequence_start_timestamptz tsequence_subseq tsequence_time tsequence_timestamps tsequence_timestamps_iter tsequence_to_string tsequence_value_at_timestamptz tsequence_values_p tstepseq_to_linear tstepseq_to_linear_iter

datumsegm_locate() long double datumsegm_locate ( Datum  value1, Datum  value2, Datum  value, meosType  basetype  ) Return a float value in (0,1) if a segment of base values intersects a base value, return -1.0 otherwise. Parameters [in] value1,value2 Values defining the segment [in] value Value to locate [in] basetype Type of the values Returns Return -1.0 if the value is not located in the segment or if the value is equal to the first or the last value. The reason is that the function is used in the lifting infrastructure for determining the crossings after testing whether the bounds of the segments are equal to a value.