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lp_var_get(+Handle, +Var, ++What, -Value)
Obtain information for an individual solver problem variable Var.
- Handle
- Handle to a solver state
- Var
- A solver problem variable for Handle
- What
- Specification for information wanted (atom)
- Value
- Returned value of What
Description
Retrieve information about the (logically) most recent solver state and
results related to a particular variable, for the solver state
represented by Handle. Fails if no solution has been computed yet. What
can take the same values as those in eplex_var_get/3.
Exceptions
- (4) instantiation fault
- Handle is not instantiated.
- (5) type error
- Handle is not a compound term.
- (6) out of range
- What is not a valid value.
- (6) out of range
- Var is not a problem variable for Handle.
- (6) out of range
- What is unavailable; the information was not requested at solver setup.
- (40) stale object handle
- Handle not valid: solver state had been destroyed by cleanup
See Also
eplex_var_get / 3