*BitOr Operator
Estimated reading time: 3 minutes
Used to perform a logical disjunction on two Boolean expressions, or a bitwise disjunction on two integer values.
result = expression1 *BitOr expression2
Parameters
result
Required. Any Boolean or numeric expression. For Boolean comparisons, the result is the logical disjunction of two expressions. For bitwise operations the result is a numeric value resulting from the bitwise disjunction of two numeric expressions.
expression1
Required. Any Boolean or numeric expression.
expression2
Required. Any Boolean or numeric expression.
Remarks
For Boolean comparison, if either expression1 or expression2 evaluates to True , result is True . If expression1 evaluates to True , and expression2 evaluates to False, the result is True . The following table illustrates how the result is determined:
| If *expression1* is | And *expression2* is | Then *result* is |
|---|---|---|
| True | True | True |
| True | False | True |
| False | True | True |
| False | False | False |
For bitwise operations, the bitOr operator performs a bitwise comparison of identically positioned bits in two numeric expressions and sets the corresponding bit in *result according to the following table:
| If bit in *expression1* is | And bit in *expression2* is | Then *result* is |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 1 |
Note Since the logical/bitwise operators have a lower precedence than other arithmetic and relational operators, any bitwise operations should be enclosed in parentheses to ensure accurate execution.
If the operands consist of one Boolean expression and one numeric expression, the result Boolean expression will be converted to a numeric value (-1 For True, and 0 For False) and the bitwise operation will result.
Example
dclconst Hex24 Value( H"24" )
dclfld Byte1 Type( *byte ) INZ( H"46")
dclfld Byte2 Type( *byte )
dclfld Int1 Type( *integer2 ) INZ( H"46" )
dclfld Int2 Type( *integer2 )
dclfld Bool1 Type( *Boolean ) INZ( *true )
dclfld Bool2 Type( *Boolean )
dclfld Str2 Type( *string )
Byte2 = Byte1 *BitOr Hex24 // Byte2 = H"66"
Int2 = Int1 *BitOr Hex24 // Int2 = 102 or H"0066"
Bool2 = Int2 *BitOr H"11" // Bool2 = True
Str2 = Int1 *BitOr Hex24 // Str2 = "102"
Int2 = Bool1 *BitOr H"0C00" // Int2 = 3073 or H'0C01"