linear_constraint.cc File Reference

#include "ortools/sat/linear_constraint.h"
#include <algorithm>
#include <cmath>
#include <cstddef>
#include <cstdint>
#include <limits>
#include <string>
#include <utility>
#include <vector>
#include "absl/base/attributes.h"
#include "absl/container/flat_hash_set.h"
#include "absl/log/check.h"
#include "absl/strings/str_cat.h"
#include "absl/types/span.h"
#include "ortools/base/mathutil.h"
#include "ortools/base/strong_vector.h"
#include "ortools/sat/integer.h"
#include "ortools/sat/integer_base.h"
#include "ortools/sat/sat_base.h"
#include "ortools/util/saturated_arithmetic.h"
#include "ortools/util/strong_integers.h"

Go to the source code of this file.

Namespaces
namespace	operations_research
	In SWIG mode, we don't want anything besides these top-level includes.
namespace	operations_research::sat

Functions
double	operations_research::sat::ComputeActivity (const LinearConstraint &constraint, const util_intops::StrongVector< IntegerVariable, double > &values)
double	operations_research::sat::ComputeL2Norm (const LinearConstraint &constraint)
	Returns sqrt(sum square(coeff)).
IntegerValue	operations_research::sat::ComputeInfinityNorm (const LinearConstraint &constraint)
	Returns the maximum absolute value of the coefficients.
double	operations_research::sat::ScalarProduct (const LinearConstraint &ct1, const LinearConstraint &ct2)
void	operations_research::sat::DivideByGCD (LinearConstraint *constraint)
void	operations_research::sat::RemoveZeroTerms (LinearConstraint *constraint)
	Removes the entries with a coefficient of zero.
void	operations_research::sat::MakeAllCoefficientsPositive (LinearConstraint *constraint)
	Makes all coefficients positive by transforming a variable to its negation.
void	operations_research::sat::MakeAllVariablesPositive (LinearConstraint *constraint)
	Makes all variables "positive" by transforming a variable to its negation.
bool	operations_research::sat::NoDuplicateVariable (const LinearConstraint &ct)
	Returns false if duplicate variables are found in ct.
LinearExpression	operations_research::sat::CanonicalizeExpr (const LinearExpression &expr)
bool	operations_research::sat::ValidateLinearConstraintForOverflow (const LinearConstraint &constraint, const IntegerTrail &integer_trail)
LinearExpression	operations_research::sat::NegationOf (const LinearExpression &expr)
	Preserves canonicality.
LinearExpression	operations_research::sat::PositiveVarExpr (const LinearExpression &expr)
	Returns the same expression with positive variables.
IntegerValue	operations_research::sat::GetCoefficient (const IntegerVariable var, const LinearExpression &expr)
IntegerValue	operations_research::sat::GetCoefficientOfPositiveVar (const IntegerVariable var, const LinearExpression &expr)
bool	operations_research::sat::PossibleOverflow (const IntegerTrail &integer_trail, const LinearConstraint &constraint)