Language Reference

ISHFT(I, SHIFT)

Performs a logical shift.

I

must be of type integer.

SHIFT

must be of type integer. The absolute value of SHIFT must be less than or equal to BIT_SIZE (I).

Class

Elemental function

Result Type and Attributes

Same as I.

Result Value

• The result has the value obtained by shifting the bits of I by SHIFT positions.
• If SHIFT is positive, the shift is to the left; if SHIFT is negative, the shift is to the right; and, if SHIFT is zero, no shift is performed.
• Bits shifted out from the left or from the right, as appropriate, are lost.
• Vacated bits are filled with zeros.
• The bits are numbered 0 to BIT_SIZE(I)-1, from right to left.

Examples

ISHFT (3, 1) has the result 6. See Integer Bit Model.

Notes:

1. IBM Extension.