Forth local variable assigning variables

Question

I have a simple local variable in Forth:

: subtraction { a b } a b - ;

I would like to assign the output of

a b -

to another variable, say c.

Is this possible?

Lars Brinkhoff · Accepted Answer · 2018-03-05 17:37:43Z

3

TO works for both VALUEs and local variables, so:

: subtraction { a b | c -- } a b - to c ;

answered Mar 5, 2018 at 17:37

Lars Brinkhoff

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2 Comments

Softey Over a year ago

Do you have to have the | c — part? Can c just be a variable within the local variable. I’m thinking of it as being inside a function and declaring a new variable like in Java.

Lars Brinkhoff Over a year ago

Yes, you do. This declares a and b to be local variables that take their values off the stack, and c to be an uninitialized local variable.

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