address-of

Type:	-	function (subr)
Source:	-	xlmath.c

Syntax

(address-of expr)

expr - an expression
returns - the memory address of the expression as an integer

Description

The 'address-of' function returns the internal memory address of the XLISP node that corresponds to 'expr'. The value returned is an integer.

Examples

(setq var 0)                    ; set up VAR with 0
(address-of var)                ; returns 123224
(address-of 'var)               ; returns 182638
(peek (address-of var))         ; returns 83951616
(peek (1+ (address-of var)))    ; returns 16777216
(peek (+ 2 (address-of var)))   ; returns 0  <-- value of VAR
(setq var 14)                   ; change the value to 14
(peek (+ 2 (address-of var)))   ; returns 14
(setq var 99)                   ; change the value to 99
(peek (+ 2 (address-of var)))   ; returns 99

Caution: Be careful when modifying the internal state of XLISP. If you have modified it, it would be a good idea to exit XLISP and re-enter before doing any work you really want to retain.

See the address-of function in the XLISP 2.0 manual.

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