Data Sheet

dScript

dScript User Manual v2.15

Constant declarations

const Minus17 -17

const LogArraySize 24

var TemperatureLog[LogArraySize]

var StartTemp

Declaring numbers that can be used many times in your program as const can save time if

you need to change it. Use the const anywhere in your program where you would otherwise

use the number.

main: StartTemp = Minus17

...

Constants can also have an expression as the parameter. All elements of the expression must

themselves be constant, which means you cannot use variables.

const FILTCTRL 4

const FILTREF 1<<(FILTCTRL-1)

const FILTMOD 1<<FILTCTRL

All expressions are evaluated from left to right, there is no operator precedence. If you need to

change the order of evaluation then enclose that section in parenthesis. In the example above

(FILTCTRL-1) is evaluated first and the result used to shift the 1 left by that many places. Any

named constants used in the expression must have already been declared.

Note that all constant expressions are evaluated by the compiler when the program is

compiled, not on the board at runtime.