Is there a format specifier that works with Boolean values?

Question

I want to do something like this:

NSLog(@"You got: %x", booleanValue);

where x is the specifier. But I can't find one! I want to avoid:

if (booleanValue) {
    NSLog(@"You got: YES");
}
else {
    NSLog(@"You got: NO");
}

Any ideas? The docs didn't have a Boolean specifier. %@ didn't work either.

Answer 1

Here are two things that work:

NSLog(@"You got: %@",booleanValue ? @"YES" : @"NO");

or you can cast:

NSLog(@"You got: %d", (int)booleanValue);

Which will output 0 or 1

Answer 2

You can cast it to an int and use %d:

NSLog(@"You got: %d", (int)booleanValue);

Or use something like this:

NSLog(@"You got: %@", booleanValue ? @"YES" : @"NO");

Answer 3

There's no format specifier that I know of. You can do this:

NSLog(@"You got: %@", (booleanValue ? @"YES" : @"NO"));

Alternately, you could write a little function or macro using the logic above that takes a BOOL and returns the appropriate string. You can then use that function in your log statements.

Answer 4

Yes

Here is the code:

NSLog(@"%hhd",BOOLvariable);

Prints 1 for Yes and 0 for No. Worked for me.