NSMutableInteger.m

//
//  NSMutableInteger.m
//
//  Created by Jonathan Annett on 21/11/13.
//  Copyright (c) 2013 Sophtwhere. All rights reserved.
//

#import "NSMutableInteger.h"

@implementation NSMutableInteger

-(NSInteger) increment {
    _integerValue++;
    return _integerValue;
}
-(NSInteger) decrement {
    _integerValue--;
    return _integerValue;
}

-(NSInteger) integerValueMinusOne {
    return _integerValue-1;
}


-(NSInteger) integerValuePlusOne {
    return _integerValue+1;
}


+(NSMutableInteger*) zero {
    NSMutableInteger *result = [NSMutableInteger new];
    result->_integerValue = 0;
    return [result autorelease];
}

+(NSMutableInteger*) one {
    NSMutableInteger *result = [NSMutableInteger new];
    result->_integerValue = 1;
    return [result autorelease];
}

+(NSMutableInteger*) yes{
    NSMutableInteger *result = [NSMutableInteger new];
    result->_integerValue = 1;
    return [result autorelease];
}
+(NSMutableInteger*) no{
    NSMutableInteger *result = [NSMutableInteger new];
    result->_integerValue = 0;
    return [result autorelease];
}


-(BOOL) boolValue {
    return _integerValue!=0;
}

-(void) setBoolValue:(BOOL) value {
    _integerValue = value ? 1 : 0;
}


-(BOOL) odd{
    return (_integerValue % 2) == 1;
}
-(BOOL) even{
    return (_integerValue % 2) == 0;
}
-(void) clear{
    _integerValue = 0;
}
-(void) set{
    _integerValue = 1;
}


-(id) initWithInteger:(NSInteger) integer{
    if ( (self = [self init]) ) {
        _integerValue = integer;
    }
    return self;
}

+(NSMutableInteger*) integer:(NSInteger) integer{
    NSMutableInteger *result = [[NSMutableInteger alloc] initWithInteger:integer];
    return [result autorelease];
}

@end