UniBasic Commands Reference - Rocket Software

1-161 UniBasic Commands Reference
If STACKCOMMON is off when one program executes another, the
contents of unnamed common areas are passed to the executed program and
back to the executing program.
If STACKCOMMON is on when one program executes another program,
the contents of unnamed common areas are not passed to the program you
execute. Instead, they are saved, and the called program’s unnamed
common areas are initialized to 0. When control is passed back to the calling
program, it is restored to its value before the program call. Unnamed
common areas are never passed to a phantom program.
Parameters
The following table describes each parameter of the syntax.
Parameter Description
/common.name/ Specifies a name for a named common variable. common.name can
have any valid variable name no longer than seven characters. Default
(no common name provided) stores the variable in unnamed common.
var1 A variable to place in the named or unnamed common.
,var2 A second variable to place in the named or unnamed common areas.
ARR1 An array to place in the named or unnamed common area. Do not
declare common arrays with a DIM statement. Arrays in a common
cannot be dynamically redimensioned.
, You can enter a COMMON statement on several lines by terminating
each line to be continued with a comma.
COMMON Parameters
Examples
In the following example, the COMMON statement declares the arrays NAME and
DATES, and declares the variable DCHANGE in unnamed common:
COMMON NAME(100),DATES(100,2),DCHANGE