ICLZ returns a FIXED BIN(31) value that indicates the number of leading zeros in a FIXED BIN value.

Read syntax diagramSkip visual syntax diagramICLZ( x)
Specifies a REAL FIXED BIN value with a scale factor of zero.

If the argument x is of the type SIGNED FIXED BIN(p) with p <= 15, it is converted to SIGNED FIXED BIN(31). If it is of the type UNSIGNED FIXED BIN(p) with p <= 16, it is converted to UNSIGNED FIXED BIN(32).