New Operators

twinBASIC introduces several new operators to enhance language capabilities. Reference pages for each individual operator live under Reference → Operators.

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. The companion conjunction operator is AndAlso.

If() Operator

Short-circuit If() operator with syntax identical to the traditional 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. See Reference → Operators → Compound Assignment for the per-operator details.

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.