is_var()

Verify that a PSL object variable exists.

Syntax

is_var(object)

Parameter

Parameter	Definition
object	name of the object that is to be verified as a variable

Description

The is_var() function returns TRUE if object exists and is a variable. The is_var() function returns FALSE for the following conditions:

object does not exist
object exists but is not a variable-it is an application instance or a parameter

The is_var() function first checks for the existence of a variable in the context of the argument that is supplied to the function, not the current context. If the variable does not exist in the supplied context, the is_var() function searches until the variable is found or the search fails at the computer level.

Example

The following example uses the is_var() function to determine if the PSL object /MEMORY/MEMORY/MEMPageOut/value is a variable:

object = "/MEMORY/MEMORY/MEMPageOut/value"
if (is_var(object)) {
print(object," is a variable.\n");
}