# BIC, BIS

Portability Subroutines: Perform a bit-level set and clear for integers.

## Module

USE IFPORT

CALL BIC (bitnum, target)

CALL BIS (bitnum, target)

bitnum | (Input) INTEGER(4). Bit number to set. Must be in the range 0 (least significant bit) to 31 (most significant bit) if target is INTEGER(4). If target is INTEGER(8), bitnum must be in range 0 to 63.
target | (Input) INTEGER(4) or INTEGER(8). Variable whose bit is to be set.

BIC sets bit bitnum of target to 0; BIS sets bit bitnum to 1.

## Example

Consider the following:

    USE IFPORT
     integer(4) bitnum, target_i4
     integer(8) target_i8
     target_i4 = Z'AAAA'
     bitnum = 1
     call BIC(bitnum, target_i4)
     target_i8 = Z'FFFFFFFF00000000'
     bitnum = 40
     call BIC(bitnum, target_i8)
     bitnum = 0
     call BIS(bitnum, target_i4)
     bitnum = 1
     call BIS(bitnum, target_i8)
     print '(" integer*4 result ",Z)', target_i4
     print '(" integer*8 result ",Z)', target_i8
     end

Parent topic: A to B

## See Also

BIT