ObjectiveInstance¶

class ampl::ObjectiveInstance : public ampl::BasicInstance<internal::ObjectiveInstance>¶

Represents an objective instance.

All AMPL suffixes for an objective are available through methods with the same name in this class. See http://www.ampl.com/NEW/suffbuiltin.html for a list of the available suffixes.

All the accessors in this class throw an std::runtime_error if the instance has been deleted in the underlying AMPL interpreter.

Public Functions

inline double value() const¶: Get the value of the objective instance.

inline std::string astatus() const¶: Return the AMPL status.

inline std::string sstatus() const¶: Return the solver status.

inline int exitcode() const¶: Exit code returned by solver after most recent solve with this objective.

inline std::string message() const¶: Result message returned by solver after most recent solve with this objective.

inline std::string result() const¶: Result string returned by solver after most recent solve with this objective.

inline void drop()¶: Drop this objective instance.

inline void restore()¶: Restore this objective instance (if it had been dropped, no effect otherwise)

inline bool minimization() const¶

Get the sense of this objective.

Returns: true if minimize, false if maximize

inline Entity entity() const¶: Returns the entity that this instance is part of.

inline Tuple key() const¶: Returns the key of this instance.

inline std::string name() const¶: Returns the name of this instance.

inline std::string toString() const¶: Returns a string representation of this instance.

Objective

Parameter