/*
 * var_eq_minus.h
 *
 *  Created on: 16/12/2014

 *      Author: Pedro

 */

#ifndef SRC_CONSTRAINTS_VAR_EQ_MINUS_H_
#define SRC_CONSTRAINTS_VAR_EQ_MINUS_H_

#include <stdbool.h>
#include <sys/types.h>

#include "../config.h"
#include "../constraints.h"
#include "../kernels/cl_aux_functions.h"
#include "../kernels/cl_constraints.h"
#include "../kernels/cl_ttl.h"

unsigned int c_var_eq_minus(unsigned int x_id, unsigned int y_id, unsigned int z_id);
unsigned int c_var_eq_minus_reif(unsigned int x_id, unsigned int y_id, unsigned int z_id, int reif_v_id);

bool var_eq_minus_check(constr *c, bool explored);

#if CS_VAR_EQ_MINUS == 1

void var_eq_minus_prop(CL_INTS_MEM int *vs_per_c_idx, CL_MEMORY VARS_PROP *vs_prop_, CL_MEMORY unsigned short *vs_id_to_prop_, bool *prop_ok TTL_CTR);

#if CS_R_VAR_EQ_MINUS == 1

void var_eq_minus_reif( CL_INTS_MEM int *vs_per_c_idx, CL_MEMORY VARS_PROP *vs_prop_, CL_CS_MEM cl_constr *current_cs,
		CL_MEMORY unsigned short *vs_id_to_prop_ CS_IGNORE_FUNC TTL_CTR);
void var_eq_minus_prop_opposite(CL_INTS_MEM int *vs_per_c_idx, CL_MEMORY VARS_PROP *vs_prop_, CL_CS_MEM cl_constr *current_cs,
		bool *prop_ok CS_IGNORE_FUNC TTL_CTR);

#endif

void var_eq_minus_propagate( CL_INTS_MEM int *vs_per_c_idx, CL_MEMORY VARS_PROP *vs_prop_, CL_CS_MEM cl_constr *current_cs,
		CL_MEMORY unsigned short *vs_id_to_prop_, bool *prop_ok PROPAGATED_FUNC CS_IGNORE_FUNC TTL_CTR);

#endif

#endif /* SRC_CONSTRAINTS_VAR_EQ_MINUS_H_ */