New Operators

twinBASIC introduces several new operators to enhance language capabilities.

Bitshift Operators

<< and >> perform left-shift and right-shift operations on a numeric variable. Note that shifts beyond available size result in 0, not wrapping.

Short-Circuit Conditional Operators

OrElse and AndAlso

With the regular Or and And statements, both sides are evaluated, even when not necessary. With a short circuit operator, if the condition is resolved by the first side, the other side is not evaluated. So if you have: If Condition1 OrElse Condition2 Then, if Condition1 is True, then Condition2 will not be evaluated, and any code called by it will not run.

If() Operator

Short-circuit If() operator with syntax identical to the tradition IIf. This has the additional benefit of not converting variables into a Variant if they’re the same type; i.e. If(condition, Long, Long) the Long variables will never become a Variant.

Assignment Operators

+= -= /= *= ^= &= <<= >>=

These are the equivalent of var = var (operand) (var2). So i += 1 is the equivalent of i = i + 1.

IsNot Operator

The logical opposite of the Is operator for testing object equivalence. For example, instead of If (object Is Nothing) = False you could now write If object IsNot Nothing Then.