Intel® Fortran Compiler 16.0 User and Reference Guide
Elemental Intrinsic Function (Generic): Performs a logical AND on corresponding bits. This function can also be specified as AND.
result = IAND (i,j)
i |
(Input) Must be of type integer or of type logical (which is treated as an integer). |
j |
(Input) Must be of type integer or logical with the same kind parameter as i. If the kinds of i and j do not match, the value with the smaller kind is extended with its sign bit on the left and the larger kind is used for the operation and the result. |
The result type and kind is the same as i. The result value is derived by combining i and j bit-by-bit according to the following truth table:
i j IAND (i, j)
1 1 1
1 0 0
0 1 0
0 0 0
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 |
|---|---|---|
BIAND |
INTEGER(1) |
INTEGER(1) |
IIAND 1 |
INTEGER(2) |
INTEGER(2) |
JIAND |
INTEGER(4) |
INTEGER(4) |
KIAND |
INTEGER(8) |
INTEGER(8) |
1Or HIAND. |
||
IAND (2, 3) has the value 2.
IAND (4, 6) has the value 4.
The following shows another example:
INTEGER(1) i, m
INTEGER result
INTEGER(2) result2
i = 1
m = 3
result = IAND(i,m) ! returns an integer of default type
! (INTEGER(4) unless reset by user) whose
! value = 1
result2 = IAND(i,m) ! returns an INTEGER(2) with value = 1