Why sometimes it's very difficult to see the content of variables in Xcode 4.3

Question

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Sometimes it show up sometimes it doesn't

I wonder why.

What's with the visual space? – Daniel Jun 03 '12 at 17:04 — Daniel, Jun 03 '12 at 17:04
Are you in debug or release mode? – Daniel Jun 03 '12 at 17:05 — Daniel, Jun 03 '12 at 17:05
debug. How do I make sure anyway? – user4951 Jun 04 '12 at 03:39 — user4951, Jun 04 '12 at 03:39

CRD · Accepted Answer · 2012-06-04T02:39:01.720

LLDB appears to be not as good as GDB at showing the correct state of variables - e.g. sometimes, often near the start of methods, LLDB fails to figure out the type of self and you cannot see the instance variables; whereas GDB with the same code is fine.

There are sometimes other reasons; to do with accessing memory, locks, etc.; that a debugger cannot show you variables.

Whether your particular case is LLDB failing or one of those cases when GDB also would fail I cannot say, but if this is hitting you a lot in a particular project switching to GDB might be worth it for the project.

Why sometimes it's very difficult to see the content of variables in Xcode 4.3

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