Question

I have following method that does some stringbuilding, but unfortunately i am having problem with parsing the boolean to my NSString.

The code is following:

- (void)setToolOutput:(int) outputNumber state: (BOOL) value {
    NSString *str =  [NSString stringWithFormat:@"this=%i is=%c",outputNumber,value];
    NSData* data = [str dataUsingEncoding:NSUTF8StringEncoding];
    [OutputStream write:[data bytes] maxLength:[data length]];
    NSLog(@"%@", str);
}

I have tried to parse it by using %c for char, and %s as string of chars. Both ways outputs my boolean as a question mark turned upside down.

EDIT: I want it to parse as True or False.

Answer 1

Boolean is basically an integer, so you can use %i to get its decimal representation.
What you usually want is this:

NSString *booleanString = (value) ? @"True" : @"False";