# IBCLR

Elemental Intrinsic Function (Generic): Clears one bit to zero.

result = IBCLR (i,pos)

i | (Input) Must be of type integer or of type logical (which is treated as an integer).
pos | (Input) Must be of type integer. It must not be negative and it must be less than BIT_SIZE(i). The rightmost (least significant) bit of i is in position 0.

## Results

The result type and kind are the same as i. The result has the value of the sequence of bits of i, except that bit pos of i is set to zero.

For more information, see Bit Functions.

The model for the interpretation of an integer value as a sequence of bits is shown in Model for Bit Data.

Specific Name | Argument Type | Result Type
--- | --- | ---
BBCLR | INTEGER(1) | INTEGER(1)
IIBCLR1 | INTEGER(2) | INTEGER(2)
JIBCLR | INTEGER(4) | INTEGER(4)
KIBCLR | INTEGER(8) | INTEGER(8)
1Or HBCLR.

## Example

IBCLR (18, 1) has the value 16.

If V has the value (1, 2, 3, 4), the value of IBCLR (POS = V, I = 15) is (13, 11, 7, 15).

The following shows another example:

    INTEGER J, K
    J = IBCLR(7, 1) ! returns 5 = 0101
    K = IBCLR(5, 1) ! returns 5 = 0101

Parent topic: H to I

## See Also

BTEST
IAND
IBCHNG
IBSET
IEOR
IOR
ISHA
ISHC
ISHL
ISHFT
NOT