CBL_XOR

The CBL_XOR library routine compares each bit of its first operand to the corresponding bit of its second operand. If one bit is 0 and the other bit is 1, the corresponding result bit is set to 1. Otherwise, the corresponding result bit is set to 0.

Source	Target	Result
0	0	0
0	1	1
1	0	1
1	1	0

Syntax:

CALL "CBL_XOR" USING source                        destination                      [length]                GIVING returnCode

Parameters:

source	PIC X(n)	Specifies the first operand.
destination	PIC X(n)	Specifies the second operand and receives the result of the operation.
length	any numeric data item or numeric literal	Specifies the number of bytes to be considered when executing the routine. When this parameter is omitted, all bytes in source are used.

Return code:

returnCode can be any numeric data item and provides additional information:

0	Operation successful.
1	Operation failed.

Examples:

Example - Get the bit level XOR result between characters 3 and 4

move "3" to char1 *> internal bit representation 00110011 move "4" to char2 *> internal bit representation 00110100             char-result  call "cbl_xor" using char1 char-result   if return-code = 0    display message "XOR operation between " char1 " and " char2                    " is " char-result *> char-result will have internal bit representation 00000111 end-if