Update 2014-12-08-lldb-debugging.md

[croath]

correct the output and command of lldb

[chriseidhof]

I think it should be p, right? Not po? It's an integer.

[croath]

@chriseidhof It's true that po stands for print object as described in manual.

But according to the original article, the output is 3. If you try the commands in Xcode Debugger, you will get the result as:

(lldb) e NSArray *$array = @[ @"Saturday", @"Sunday", @"Monday" ]
(lldb) p [$array count]
(NSUInteger) $0 = 3
(lldb) po [$array count]
3
#there is an empty line

In a word if you're using p, the result is (NSUInteger) $0 = 3, If the result is only 3, the command should be po instead.

It's quite wired that po can print "description" of non-object value, but it just happened and I don't think it's a bug of LLDB, at most some kind of workaround or syntactic sugar.

I'm trying to figure it out but it's too difficult to me to read the source code of LLDB. Please let me know if you got the technical reason. :smile:

[croath]

@chriseidhof anything updated here?