| Navigation: Language Reference > 13 - Built-in Functions >====== BAND (return bitwise AND) ====== |    |
BAND(value,mask)
| BAND | Performs bitwise AND operation. |
| value | A numeric constant, variable, or expression for the bit value to be compared to the bit mask. The value is converted to a LONG data type prior to the operation, if necessary. |
| mask | A numeric constant, variable, or expression for the bit mask. The mask is converted to a LONG data type prior to the operation, if necessary. |
The BAND procedure compares the value to the mask, performing a Boolean AND operation on each bit. The return value is a LONG integer with a one (1) in the bit positions where the value and the mask both contain one (1), and zeroes in all other bit positions.
BAND is usually used to determine whether an individual bit, or multiple bits, are on (1) or off (0) within a variable.
| Return Data Type: | LONG |
Example:
!BAND(0110b,0010b) returns 0010b !0110b = 6, 0010b = 2
RateType BYTE !Type of rate
Female EQUATE(0001b) !Female mask
Male EQUATE(0010b) !Male mask
Over25 EQUATE(0100b) !Over age 25 mask
CODE
IF BAND(RateType,Female)| !If female
AND BAND(RateType,Over25) ! and over 25
DO BaseRate !use base premium
ELSIF BAND(RateType,Male) !If male
DO AdjBase !adjust base premium
END
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