Codec » NSLog

Printing Selectors in NSLog

Georg Tremmel — Wed, 31 Mar 2010 04:27:59 +0000

Using NSStringFromSelector to convert the selectos into a NSString, and the print the object:

NSLog(@"%@", NSStringFromSelector(selector) );

Or print it directly with good, old-fashioned C:

NSLog(@"%s", selector,);

Padding with Zeros (or other characters)

Georg Tremmel — Mon, 29 Mar 2010 04:36:12 +0000

int x = 11;
 
[NSString stringWithFormat:@"%03i", x];
// @"011"
 
[NSString stringWithFormat:@"%+5i", x];
// @"+++11"
 
[NSString stringWithFormat:@"%+05i", x];
// @"+0011"

And not really like that. 381. I’ll still have to learn a lot of C.

Stripping out NSLog() from the Release Build

Georg Tremmel — Fri, 26 Mar 2010 09:49:32 +0000

Add the the *_Prefix.pch file of your projects. Strips out NSLogs, when optimized (=Release Build)

Very nice solution, thanks to Marek Bell

// strip out NSLog on optimize
#ifndef __OPTIMIZE__
#    define NSLog(...) NSLog(__VA_ARGS__)
#else
#    define NSLog(...) {}
#endif

Variable length of accuracy of float in NSString

Georg Tremmel — Mon, 08 Feb 2010 10:47:22 +0000

float f = 1.23456;
 
NSLog(@"%.2f", f);
NSLog(@"%.0f", f);
NSLog(@"%.0f", f);

1.23
1
1.23456

[^//]NSLog

Georg Tremmel — Wed, 25 Nov 2009 11:45:28 +0000

Looking Projectwide for NSLog’s:

Shift-Apple-F: [^//]NSLog

All the NSLogs, which don’t have // infront of them.

Update:
This might be a more elegant way to get rid of the NSLogs. 447

Obj-C, Shortcut: Boolean return value to String

Georg Tremmel — Tue, 10 Nov 2009 07:26:23 +0000

Turning Boolean 1, 0 into a more descriptive description:

NSLog(@”data1 is equal to data2: %@”, [data1 isEqualToData:data2] ? @”YES” : @”NO”);