var
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: var
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BAP Online Manuals : Library Reference : Library by Name : var
Previous: unbound
Next: wait
Previous: unbound
Next: wait
6.2.136. var
tests whether its argument is currently uninstantiated
SYNOPSIS
var(Var)
SYNTAX
var(Var) (i)
ARGUMENTS
void(Var) (i) Term to be tested.
DESCRIPTION
This is a standard prolog built-in. Var succeeds if its argument is currently unbound, fails otherwise.
NOTE: free and unbound do just the same.
ERRORS
No runtime errors.
LAYERS
prolog-process, client-server, object
RELATED PREDICATES
BAP Online Manuals : Library Reference : Library by Name : var
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