MLKRatio.h

/* -*- mode: objc; coding: utf-8 -*- */
/* Toilet Lisp, a Common Lisp subset for the Étoilé runtime.
 * Copyright (C) 2008  Matthias Andreas Benkard.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or (at
 * your option) any later version.
 *
 * This program 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 a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#import "MLKNumber.h"
#import "MLKInteger.h"

#include <stdarg.h>
#include <stdio.h>
#include <gmp.h>

@class NSString, MLKInteger;


@interface MLKRatio : MLKNumber
{
  mpq_t value;
}

-(MLKRatio *) initWithString:(NSString *)string
                        base:(unsigned int)base;
-(MLKRatio *) initWithNumeratorString:(NSString *)numerString
                    denominatorString:(NSString *)denomString
                             negative:(BOOL)negative
                                 base:(unsigned int)base;

+(MLKRatio *) ratioWithNumeratorString:(NSString *)numerString
                     denominatorString:(NSString *)denomString
                              negative:(BOOL)negative
                                  base:(unsigned int)base;

-(double) doubleValue;

-(MLKNumber *) add:(MLKNumber *)arg;
-(MLKNumber *) subtract:(MLKNumber *)arg;
-(MLKNumber *) multiplyWith:(MLKNumber *)arg;
-(MLKNumber *) divideBy:(MLKNumber *)arg;

-(NSComparisonResult) compare:(MLKRatio *)arg;
-(BOOL) isEqual:(id)arg;

-(MLKNumber *) numerator;
-(MLKNumber *) denominator;

-(NSString *) description;
-(NSString *) descriptionWithBase:(int)base;
-(NSString *) descriptionForLisp;

-(void) dealloc;
@end