What will be the output of the following code?
static int
a (void)
{
printf ("a\n");
return 0;
}
static int
b (void)
{
printf ("b\n");
return 1;
}
static int
c (void)
{
printf ("c\n");
return 2;
}
int main (int argc, const char *argv[])
{
printf ("%d %d %d", a (), b (), c ());
return 0;
}

What class specifiers are supported?

Can an exception caught in @catch be re-thrown?

Which of the following creates a class that conforms to a protocol?

What is #import?

What can you use to avoid the msgSend function overhead?

(...) are used by Cocoa and Cocoa Touch objects for a variety of different situations

What's the hierarchy of UIButton until NSObject ?

Which one contains the INCORRECT definition of a Predefined Macro ?

In (...), the system uses the same reference counting system as (...), but it inserts the appropriate memory management method calls for us at compile-time.

Which one contains the INCORRECT definition of a preprocessor directive ?