ADDVAR Procedure

Creates a variable on the $MAIN$ program level and binds a local variable to it.

ADDVAR, name, local

name A string containing the name of a variable to create on the $MAIN$ program level.

local The name of the local variable that you want to bind to the variable name on the $MAIN$ program level.

None.

This example shows how ADDVAR is used to pass a variable from inside a procedure to the $MAIN$ program level.

PRO test_addvar

; Create a scalar variable inside a procedure, then use ADDVAR to pass it to
; the top-level procedure $MAIN$.

ADDVAR, 'sclvar', local
local = 1.2345
local = local + 1.
PRINT, local

END

Now, at the WAVE prompt, do the following:

test_advar
INFO, /Traceback

% At $MAIN$.

; Verify that you are now on the $MAIN$ program level.

INFO, /Variables

; This INFO command verifies that the scalar created inside the 
; procedure now exists on the $MAIN$ program level.

SCLVAR          FLOAT     =       2.23450

DELVAR, UPVAR