Segment order

DclIntervalLT
(IBLKLT)
Get i that fills bounds (i-1)…value
DclIntervalLE
(IBLKLE)
Get i that fills bounds (i-1)
DclIntervalGT
(IBLKGT)
Get i that fills bounds (i)
DclIntervalGE
(IBLKGE)
Get i that fills bounds (i)…value

*The corresponding f77 interface name in parentheses.

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