
is_sbds_var(?Var)

   checks whether a variable is an SBDS variable

Arguments
   Var                 Variable to check

Type
   library(fd_sbds)

Description
	Succeeds if and only if Var is a variable and has been initialised
	as an SBDS variable (through a call to sbds_initialise/4 or
	sbds_initialise/5).

Fail Conditions
   Var is not a variable or not an SBDS variable.

See Also
   sbds_initialise / 4, sbds_initialise / 5
