How to print and store a variable name in string variable?

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In C, there’s a # directive, also called ‘Stringizing Operator’, which does this magic. Basically # directive converts its argument in a string.

#include 
#define getName(var) #var

int main()
{
	int myVar;
	printf("%s", getName(myVar));
	return 0;
}

Output:

myVar

We can also store variable name in a string using sprintf() in C.

# include 
# define getName(var, str) sprintf(str, "%s", #var)

int main()
{
	int myVar;
	char str[20];
	getName(myVar, str);
	printf("%s", str);
	return 0;
}

Output:

myVar