Question

How to find the length of a string using recursion in C

Answer 1

#include <stdio.h>

int slen_recursion(char s[], int index) {
	static int len = 0;

	if (s[index] == '\0')
		return len;
	else
		len++;

	slen_recursion(s, index + 1);
}

int main() {
	char s[] = "C programming";

	printf("%d\n", slen_recursion(s, 0));

	return 0;

}

 
 
   
/*
run:
   
13
  
*/

 

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