operations_research::sat::CompiledBoolXorConstraint Class Reference

The violation of a bool_xor constraint is 0 or 1. More...

Detailed Description

The violation of a bool_xor constraint is 0 or 1.

Individual compiled constraints.

Definition at line 470 of file constraint_violation.h.

#include <constraint_violation.h>

Inheritance diagram for operations_research::sat::CompiledBoolXorConstraint:

Public Member Functions
	CompiledBoolXorConstraint (const ConstraintProto &ct_proto)
	--— CompiledBoolXorConstraint --—
	~CompiledBoolXorConstraint () override=default
int64_t	ComputeViolation (absl::Span< const int64_t > solution) override
int64_t	ViolationDelta (int, int64_t, absl::Span< const int64_t > solution_with_new_value) override
	Returns the delta if var changes from old_value to solution[var].
Public Member Functions inherited from operations_research::sat::CompiledConstraintWithProto
	CompiledConstraintWithProto (const ConstraintProto &ct_proto)
	--— CompiledConstraintWithProto --—
	~CompiledConstraintWithProto () override=default
const ConstraintProto &	ct_proto () const
std::vector< int >	UsedVariables (const CpModelProto &model_proto) const final
	This just returns the variables used by the stored ct_proto_.
Public Member Functions inherited from operations_research::sat::CompiledConstraint
	CompiledConstraint ()=default
virtual	~CompiledConstraint ()=default
void	InitializeViolation (absl::Span< const int64_t > solution)
	Recomputes the violation of the constraint from scratch.
virtual void	PerformMove (int var, int64_t old_value, absl::Span< const int64_t > solution_with_new_value)
	Updates the violation with the new value.
int64_t	violation () const
	The cached violation of this constraint.

Additional Inherited Members
Protected Attributes inherited from operations_research::sat::CompiledConstraint
int64_t	violation_

Constructor & Destructor Documentation

CompiledBoolXorConstraint()

operations_research::sat::CompiledBoolXorConstraint::CompiledBoolXorConstraint ( const ConstraintProto & ct_proto )

explicit

--— CompiledBoolXorConstraint --—

Definition at line 961 of file constraint_violation.cc.

~CompiledBoolXorConstraint()

operations_research::sat::CompiledBoolXorConstraint::~CompiledBoolXorConstraint ( )

overridedefault

Member Function Documentation

ComputeViolation()

int64_t operations_research::sat::CompiledBoolXorConstraint::ComputeViolation ( absl::Span< const int64_t > solution )

overridevirtual

Computes the violation of a constraint.

This is called by InitializeViolation() and also the default implementation of ViolationDelta().

Implements operations_research::sat::CompiledConstraint.

Definition at line 965 of file constraint_violation.cc.

ViolationDelta()

int64_t operations_research::sat::CompiledBoolXorConstraint::ViolationDelta ( int var, int64_t old_value, absl::Span< const int64_t > solution_with_new_value )

overridevirtual

Returns the delta if var changes from old_value to solution[var].

Reimplemented from operations_research::sat::CompiledConstraint.

Definition at line 974 of file constraint_violation.cc.

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The documentation for this class was generated from the following files:

• ortools/sat/constraint_violation.h
• ortools/sat/constraint_violation.cc