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Last active December 11, 2015 20:58
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A quick replacement to NSLog in your Obj C project

#Better NSLog A quick replacement to NSLog in your Obj C project

This will need no extra effort at all and changes the way you see your logs in debug area.

###How it looks in Debug Area:

Before:

2013-01-29 15:46:24.076 Looptivity[76673:c07] ----2013-01-28 19:02:47 +0000
2013-01-29 15:46:24.076 Looptivity[76673:c07] USER YES
2013-01-29 15:46:24.107 Looptivity[76673:c07] Application become active
2013-01-29 15:46:24.109 Looptivity[76673:c07] Network reachable!

After:

[         MomiLoopAppDelegate.m : 154 ]: ----2013-01-28 19:02:47 +0000
[         MomiLoopAppDelegate.m : 160 ]: USER YES
[         MomiLoopAppDelegate.m : 409 ]: Application become active
[                    MVRemote.m : 102 ]: Network reachable!

###Pros:

  • Automatically NSLogs are vanished from product build.
  • Get rid of long date-time stamp from log.
  • Trace logs with a bit more meaningful "Filename : Line-num" format with your log outputs.

###Cons:

  • In your Debug-area All Output / Target Output should be selected. As it logs with printf function, it will not be visible, when Debugger output is selected. Though, I don't think it is a problem at all, do you?

###How to Use:

  • Just Append this lines in your project's .pch file, nothing more!

###Code:

#ifdef __OBJC__
#define __FILE_NAME_ONLY__ [[[NSString stringWithUTF8String:__FILE__] lastPathComponent] UTF8String]
#else
#define __FILE_NAME_ONLY__ ""
#endif

#ifndef OPTIMIZE
# define NSLog(...) printf("[%-30s:%4d]: %s\n", __FILE_NAME_ONLY__, __LINE__, [[NSString stringWithFormat:__VA_ARGS__] UTF8String])
#else
#define NSLog(...) do {} while (0)
#endif

###Note: This fix is collected and mixed up from some of blogs and Stack Overflow answers I cannot remember by now. But thanks to all of them to make my life easier!

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