// Program implementujcy funkcj znaku

#import <Foundation/Foundation.h>

int main (int argc, char *argv[])
{
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

    int number, sign;

    NSLog (@"Podaj liczb: ");
    scanf ("%i", &number);

    if ( number < 0 )
        sign = -1;
    else if ( number == 0 )
        sign = 0;
    else       // Musi by dodatnia
        sign = 1;

    NSLog (@"Znak = %i", sign);
    [pool drain];
    return 0;
}