Bit Manipulation @ (FORTRAN 77 Language Reference)

FORTRAN 77 Language Reference

Bit Manipulation `@`

None of these functions are part of the FORTRAN 77 Standard.

Table 6-6 Bitwise Functions


Bitwise Operations	No. of Args.	Specific Name	Argument Type	Function Type
Complement	1	`NOT`	`INTEGER`	`INTEGER`
And	2 2	`AND` `IAND`	`INTEGER INTEGER`	`INTEGER INTEGER`
Inclusive or	2 2	`OR` `IOR`	`INTEGER INTEGER`	`INTEGER INTEGER`
Exclusive or	2 2	`XOR` `IEOR`	`INTEGER INTEGER`	`INTEGER INTEGER`
Shift `See Note (14)`.	2	`ISHFT`	`INTEGER`	`INTEGER`
Left shift `See Note (14).`	2	`LSHIFT`	`INTEGER`	`INTEGER`
Right shift `See Note (14).`	2	`RSHIFT`	`INTEGER`	`INTEGER`
Logical right shift `See Note (14).`	2	`LRSHFT`	`INTEGER`	`INTEGER`
Circular shift	3	`ISHFTC`	`INTEGER`	`INTEGER`
Bit extraction	3	`IBITS`	`INTEGER`	`INTEGER`
Bit set	2	`IBSET`	`INTEGER`	`INTEGER`
Bit test	2	`BTEST`	`INTEGER`	`LOGICAL`
Bit clear	2	`IBCLR`	`INTEGER`	`INTEGER`

The above functions are available as intrinsic or extrinsic functions. See also the discussion of the library bit manipulation routines in the Fortran Library Reference manual.