Objective-C >> Is There a Way to Get a Pointer / Variable Name as an NSString? [duplicate]

Question

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Print out the variable name objective-C (1 answer)

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Is there a way to ask a pointer / variable for its name as a string?

i.e...

NSNumber* aNumber;
int anInt;

NSString* name = aFunctionThatDoesWhatIAskedFor(aNumber);
NSLog(@"%@",name); //should print "aNumber";

name = aFunctionThatDoesWhatIAskedFor(anInt);
NSLog(@"%@",name); //should print "anInt";

Answer 1

define this macro

#define nameOfVariable(x) NSLog( @"%s",#x)

use this macro

nameOfVariable(aNumber);
nameOfVariable(anInt);

Explanation:

Preceding parameter name by # is known as Stringification. You can use the ‘#’ operator to stringify the variable argument or to paste its token with another token.

Sometimes you may want to convert a macro argument into a string constant. Parameters are not replaced inside string constants, but you can use the #' preprocessing operator instead. When a macro parameter is used with a leading#', the preprocessor replaces it with the literal text of the actual argument, converted to a string constant. Unlike normal parameter replacement, the argument is not macro-expanded first. This is called stringification.

Answer 2

In most programming languages objects don't have names.