インテル® Fortran コンパイラー 19.0 デベロッパー・ガイドおよびリファレンス
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. |
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. |
||
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