.gitignore

app
*.o

main.m

/**
 * A bastardization of: http://www.otierney.net/objective-c.html
 */

#import <stdlib.h>
#import <stdio.h>
#import <Foundation/NSObject.h>

@interface Fraction: NSObject {
  int numerator;
  int denominator;
}

-(void) print;
-(void) setNumerator: (int) n;
-(void) setDenominator: (int) d;
-(void) setNumerator: (int) n andDenominator: (int) d;
-(int) numerator;
-(int) denominator;
@end

// scope (returnType) methodName: (parameter1Type) parameter1Name;
@implementation Fraction
-(void) print
{
  printf("%i/%i", numerator, denominator);
}

-(void) setNumerator: (int) n
{
  numerator = n;
}

-(void) setDenominator: (int) d
{
  denominator = d;
}

-(void) setNumerator: (int) n andDenominator: (int) d
{
  numerator = n;
  denominator = d;
}

-(int) denominator
{
  return denominator;
}

-(int) numerator
{
  return numerator;
}
@end




int main (int argc, const char **argv)
{
  Fraction *frac = [[Fraction alloc] init];

  [frac setNumerator: 1];
  [frac setDenominator: 3];

  [frac setNumerator: 1
        andDenominator: 5];

  printf("The fraction is: ");
  [frac print];
  printf("\n");
  
  [frac release];
  return EXIT_SUCCESS;
}

Makefile

CC=gcc
CFLAGS=-Wall
LFLAGS=-lobjc -framework Foundation
OBJS=main.o

app: $(OBJS)
	$(CC) $(LFLAGS) $(OBJS) -o app
main.o: main.m
	$(CC) -c main.m
clean:
	rm -f *~ *.o app