How to print a variable name in C?
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 <stdio.h>#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 <stdio.h># 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
This article is contributed by Abhay Rathi. Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above
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