/*-------------------------------------------------------------------------*
 * GNU Prolog                                                              *
 *                                                                         *
 * Part  : FD constraint solver buit-in predicates                         *
 * File  : oper_supp.h                                                     *
 * Descr.: FD Operation support - header file                              *
 * Author: Daniel Diaz                                                     *
 *                                                                         *
 * Copyright (C) 1999-2012 Daniel Diaz                                     *
 *                                                                         *
 * This file is part of GNU Prolog                                         *
 *                                                                         *
 * GNU Prolog is free software: you can redistribute it and/or             *
 * modify it under the terms of either:                                    *
 *                                                                         *
 *   - the GNU Lesser General Public License as published by the Free      *
 *     Software Foundation; either version 3 of the License, or (at your   *
 *     option) any later version.                                          *
 *                                                                         *
 * or                                                                      *
 *                                                                         *
 *   - the GNU General Public License as published by the Free             *
 *     Software Foundation; either version 2 of the License, or (at your   *
 *     option) any later version.                                          *
 *                                                                         *
 * or both in parallel, as here.                                           *
 *                                                                         *
 * GNU Prolog is distributed in the hope that it will be useful,           *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of          *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU       *
 * General Public License for more details.                                *
 *                                                                         *
 * You should have received copies of the GNU General Public License and   *
 * the GNU Lesser General Public License along with this program.  If      *
 * not, see http://www.gnu.org/licenses/.                                  *
 *-------------------------------------------------------------------------*/

/* $Id$ */

/*---------------------------------*
 * Constants                       *
 *---------------------------------*/

/*---------------------------------*
 * Type Definitions                *
 *---------------------------------*/

/*---------------------------------*
 * Global Variables                *
 *---------------------------------*/

/*---------------------------------*
 * Function Prototypes             *
 *---------------------------------*/

unsigned Pl_Power(unsigned x, unsigned n);

unsigned Pl_Nth_Root_Dn(unsigned y, unsigned n);

unsigned Pl_Nth_Root_Up(unsigned y, unsigned n);

unsigned Pl_Nth_Root_Exact(unsigned y, unsigned n);

unsigned Pl_Sqrt_Dn(unsigned y);

unsigned Pl_Sqrt_Up(unsigned y);

unsigned Pl_Sqrt_Exact(unsigned y);

unsigned Pl_Find_Expon_Dn(unsigned x, unsigned y);

unsigned Pl_Find_Expon_Up(unsigned x, unsigned y);

unsigned Pl_Find_Expon_Exact(unsigned x, unsigned y);

void Pl_Full_Coeff_Power_Var(Range *y, int a, Range *n);

void Pl_Full_Find_Expon(Range *n, int a, Range *y);

void Pl_Full_Var_Power_Coeff(Range *y, Range *x, int a);

void Pl_Full_Nth_Root(Range *x, Range *y, int a);

void Full_Max_Cst_Var(Range *z, int a, Range *x);

void Full_Min_Cst_Var(Range *z, int a, Range *x);
