ilSlotBoundp

ilSlotBoundp( 
obj 
t_slotName 
) 
=> t / nil

Checks if a named slot is bound (has been assigned a value) to an instance.

obj	An instance of some class.
t_slotName	Slot name.

`t`	The slot is bound.
`nil`	The slot is unbound.

It throws an error if obj or t_slotName is invalid.

myObject->slotX = 20
ilSlotBoundp(myObject "slotX")=> t