Intel® Fortran Compiler 17.0 Developer Guide and Reference
Elemental Intrinsic Function (Generic): Performs an inclusive OR on corresponding bits. This function can also be specified as OR.
result = IOR (i,j)
i |
(Input) Must be of type integer, logical (which is treated as an integer), or a binary, octal, or hexadecimal literal constant. |
j |
(Input) Must be of type integer, or a binary, octal, or hexadecimal literal constant. If both i and j are of type integer, they must have the same kind type parameter. 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. i and j must not both be binary, octal, or hexadecimal literal constants. |
The result is the same as i if i is of type integer; otherwise, the result is the same as j. If either i or j is a binary, octal, or hexadecimal literal constant, it is first converted as if by the intrinsic function INT to type integer with the kind type parameter of the other.
The result value is derived by combining i and j bit-by-bit according to the following truth table:
i j IOR (i, j)
1 1 1
1 0 1
0 1 1
0 0 0The 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 |
|---|---|---|
BIOR |
INTEGER(1) |
INTEGER(1) |
IIOR1 |
INTEGER(2) |
INTEGER(2) |
JIOR |
INTEGER(4) |
INTEGER(4) |
KIOR |
INTEGER(8) |
INTEGER(8) |
1Or HIOR. |
||
IOR (1, 4) has the value 5.
IOR (1, 2) has the value 3.
The following shows another example:
INTEGER result
result = IOR(240, 90) ! returns 250