/*
 * minus_eq.h
 *
 *  Created on: 26/01/2017

 *      Author: Pedro

 */

#ifndef SRC_CONSTRAINTS_MINUS_EQ_H_
#define SRC_CONSTRAINTS_MINUS_EQ_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_minus_eq(unsigned int x_id, unsigned int y_id, int k);
unsigned int c_minus_eq_reif(unsigned int x_id, unsigned int y_id, int k, int reif_v_id);

bool minus_eq_check(constr *c, bool explored);

#if CS_MINUS_EQ == 1

void minus_eq_prop(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, __global int *terms_mem CS_IGNORE_FUNC TTL_CTR);

#if CS_R_MINUS_EQ == 1

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

#endif

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

#endif

#endif /* SRC_CONSTRAINTS_MINUS_EQ_H_ */