ObjectiveInstance#
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class 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
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inline double value() const#
Get the value of the objective instance.
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inline std::string astatus() const#
Return the AMPL status.
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inline std::string sstatus() const#
Return the solver status.
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inline int exitcode() const#
Exit code returned by solver after most recent solve with this objective.
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inline std::string message() const#
Result message returned by solver after most recent solve with this objective.
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inline std::string result() const#
Result string returned by solver after most recent solve with this objective.
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inline void drop()#
Drop this objective instance.
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inline void restore()#
Restore this objective instance (if it had been dropped, no effect otherwise)
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inline bool minimization() const#
Get the sense of this objective.
- Returns:
true if minimize, false if maximize
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inline Entity entity() const
Returns the entity that this instance is part of.
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inline Tuple key() const
Returns the key of this instance.
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std::string name() const#
Returns the name of this instance.
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inline std::string name() const
Returns the name of this instance.
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std::string toString() const#
Returns a string representation of this instance.
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inline std::string toString() const
Returns a string representation of this instance.
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inline double value() const#