Ranges

For any two values, a range between them can be defined in several ways:

A..B

Represents every value x such that A < x < B

A=..B

Represents every value x such that A <= x < B

A..=B

Represents every value x such that A < x <= B

A=..=B

Represents every value x such that A <= x <= B

A…B

(Same as A=..=B)

Note: The left value must be less than or equal to the right value. If both values are compile-time constant and this is not met, a compile error will be issued, stating Error C078: Range Error: Left must be <= right. Otherwise, this will result in the range containing no values inside it.

Ranges are currently used in a couple specific places in the engine:

Switch Statements

Standard switch statements can use a Value Range as the value for one of their case :s. As the values of case :s must be compile-time constant, both ends of the range must be compile-time constant in this case.

Smart Loops

Smart Loops can iterate over the values in a Value Range, running some code for each value in the range, with some increment step.