Intel® Fortran Compiler 17.0 Developer Guide and Reference
Elemental Intrinsic Function (Generic): Sets one bit to 1.
result = IBSET (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. |
The result type and kind 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 1.
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 |
|---|---|---|
BBSET |
INTEGER(1) |
INTEGER(1) |
IIBSET1 |
INTEGER(2) |
INTEGER(2) |
JIBSET |
INTEGER(4) |
INTEGER(4) |
KIBSET |
INTEGER(8) |
INTEGER(8) |
1Or HBSET. |
||
IBSET (8, 1) has the value 10.
If V has the value (1, 2, 3, 4), the value of IBSET (POS = V, I = 2) is (2, 6, 10, 18).
The following shows another example:
INTEGER I
I = IBSET(8, 2) ! returns 12 = 1100