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 * \brief Bridge for C programs to access solve_VPSC (which is in C++)
 * Authors:
 *   Tim Dwyer <tgdwyer@gmail.com>
 * Copyright (C) 2005 Authors
 * Released under GNU LGPL.  Read the file 'COPYING' for more information.
#ifndef _CSOLVE_VPSC_H_
#define _CSOLVE_VPSC_H_
#ifdef __cplusplus
class vpsc::Variable;
class vpsc::Constraint;
class vpsc::Solver;
class vpsc::IncSolver;
using namespace vpsc;
extern "C" {
typedef struct Variable Variable;
typedef struct Constraint Constraint;
typedef struct Solver Solver;
typedef struct IncSolver IncSolver;
Variable* newVariable(int id, double desiredPos, double weight);
void setVariableDesiredPos(Variable *, double desiredPos);
double getVariablePos(Variable*);

Constraint* newConstraint(Variable* left, Variable* right, double gap);

Solver* newSolver(int n, Variable* vs[], int m, Constraint* cs[]);
void deleteSolver(Solver*);
void deleteConstraint(Constraint*);
void deleteVariable(Variable*);
Constraint** newConstraints(int m);
void deleteConstraints(int m,Constraint**);
void remapInConstraints(Variable *u, Variable *v, double dgap);
void remapOutConstraints(Variable *u, Variable *v, double dgap);
int getLeftVarID(Constraint *c);
int getRightVarID(Constraint *c);
double getSeparation(Constraint *c);

typedef struct pointf_s { double x, y; } pointf;
typedef struct { pointf LL, UR; } boxf;
int genXConstraints(int n, boxf[], Variable** vs, Constraint*** cs,
            int transitiveClosure);
int genYConstraints(int n, boxf[], Variable** vs, Constraint*** cs);

void satisfyVPSC(Solver*);
void solveVPSC(Solver*);
Solver* newIncSolver(int n, Variable* vs[], int m, Constraint* cs[]);
void splitIncSolver(IncSolver*);
int getSplitCnt(IncSolver *vpsc);
#ifdef __cplusplus
#endif /* _CSOLVE_VPSC_H_ */

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