#include <variable_and_expressions.h>

Public Types
using	IdType = QuadraticProductId

Public Member Functions
	QuadraticTermKey (const ModelStorage *storage, QuadraticProductId id)

	QuadraticTermKey (Variable first_variable, Variable second_variable)

QuadraticProductId	typed_id () const

const ModelStorage *	storage () const

Variable	first () const
	Returns the Variable with the smallest id.

Variable	second () const
	Returns the Variable the largest id.

Friends
template<typename H >
H	AbslHashValue (H h, const QuadraticTermKey &key)

Detailed Description

Couples a QuadraticProductId with a ModelStorage, for use with IdMaps. Namely, this key type satisfies the requirements stated in key_types.h. Invariant:

variable_ids_.first <= variable_ids_.second. The constructor will silently correct this if not satisfied by the inputs.

This type can be used as a key in ABSL hash containers.

Definition at line 650 of file variable_and_expressions.h.

Member Typedef Documentation

◆ IdType

using operations_research::math_opt::QuadraticTermKey::IdType = QuadraticProductId

Note: this definition is for use by IdMap; clients should not rely upon it.

Definition at line 653 of file variable_and_expressions.h.

Constructor & Destructor Documentation

◆ QuadraticTermKey() [1/2]

operations_research::math_opt::QuadraticTermKey::QuadraticTermKey	(	const ModelStorage *	storage,
		QuadraticProductId	id )

inline

Note: This constructor will silently re-order the passed id so that, upon exiting the constructor, variable_ids_.first <= variable_ids_.second.

QuadraticTermKey

See https://en.cppreference.com/w/cpp/named_req/Swappable for details.

Definition at line 2074 of file variable_and_expressions.h.

◆ QuadraticTermKey() [2/2]

operations_research::math_opt::QuadraticTermKey::QuadraticTermKey	(	Variable	first_variable,
		Variable	second_variable )

inline

Note: This constructor will CHECK fail if the variable models do not agree, i.e. first_variable.storage() != second_variable.storage(). It will also silently re-order the passed id so that, upon exiting the constructor, variable_ids_.first <= variable_ids_.second.

Definition at line 2084 of file variable_and_expressions.h.