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Continued from the last question here: Log method name in Obj-C . I just wondered if there is a way to print out the variable name as well. For example: 

NSString *name = "vodkhang";
NCLog(@"%@", name);

and I hope that the output should be:

name: vodkhang

Just to summarize the previous post, currently, I can print out the class name, method name and the line number when I call 

NCLog(@"Hello World");
<ApplicationDelegate:applicationDidFinishLaunching:10>Hello world

with 

#define NCLog(s, ...) NSLog(@"<%@:%d> %@", __FUNCTION__, __LINE__, [NSString stringWithFormat:(s), ##__VA_ARGS__])
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vodkhang
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1 Answers1

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#define logIntVariable(x) NSLog( @"Value of %s = %d",#x, x)


- (void) myRoutine {
   int intValue = 5;

   logIntVariable(intValue);
}
vodkhang
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gnasher
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    The general principle is that when you put a `#` in front of an argument within the body of a `#define`, the preprocessor replaces it with a C string of the *exact* expression passed to the macro. When you pass a variable name, you'll get that name. If you pass an expression, it will reproduce the expression in full, not the evaluated result. – Quinn Taylor May 13 '10 at 04:56