How to get arguments by hooking classes

Question

Is it possible to write code that enable outputting "C" message to /var/log/syslog?

%hook classA
- (id)MethodB:(int)C
{
   //something
   return %orig;
}

Answer 1

You can do :

%hook classA
- (id)MethodB:(int)C
{
    NSLog(@"C value : %d", C);
    return %orig;
}
%end

or :

%hook classA
- (id)MethodB:(int)C
{
    %log;
    return %orig;
}
%end