OR (boolean)
From QB64 Wiki
The OR coditional operator adds an alternative in a IF...THEN or Boolean statement.
- IF a = 1 OR a = 2 THEN a = 0
- OR adds an alternative to another conditional evaluation. IF True then the statement evaluation is True.
- Parenthesis may be used to clarify the order of comparisons in an evaluation.
- AND and OR cannot be used to combine command line operations.
- A double OR syntax error may be ignored and create a QB64 compiler error!
- Not to be confused with the AND and OR numerical operations.
Symbol | Condition | Example Usage |
---|---|---|
< | Less than | IF a < b THEN |
> | Greater than | IF a > b THEN |
= | Equal | IF a = b THEN |
<= | Less than or equal | IF a <= b THEN |
>= | Greater than or equal | IF a >= b THEN |
<> | NOT equal | IF a <> b THEN |
Example:
a% = 100 b% = 50 IF (a% > b% AND a% < 100) OR b% = 50 THEN PRINT "True"
True
- Explanation: The first evaluation was False, but the OR evaluation made the statement true and the code was executed.
See also:
- AND, OR (logical operators)
- AND (boolean), XOR (boolean)
- IF...THEN