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): Reverses the value of a specified bit in an integer.
result = IBCHNG (i,pos)
i |
(Input) Must be of type integer or of type logical (which is treated as an integer). This argument contains the bit to be reversed. |
pos |
(Input) Must be of type integer. This argument is the position of the bit to be changed. The rightmost (least significant) bit of i is in position 0. |
The result type and kind are the same as i. The result is equal to i with the bit in position pos reversed.
For more information, see Bit Functions.
INTEGER J, K
J = IBCHNG(10, 2) ! returns 14 = 1110
K = IBCHNG(10, 1) ! returns 8 = 1000