Elemental Intrinsic Function (Generic): Clears one bit to zero.
Syntax
result = IBCLR (i, pos)
i
(Input) Must be of type 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 is 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) |
| IIBCLR 1 | INTEGER(2) | INTEGER(2) |
| JIBCLR | INTEGER(4) | INTEGER(4) |
| KIBCLR | INTEGER(8) | INTEGER(8) |
| 1 Or HBCLR. | ||
See Also
BTEST, IAND, IBCHNG, IBSET, IEOR, IOR, ISHA, ISHC, ISHL, ISHFT, NOT
Examples
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