Program to find length of string without using strlen()

Whenever we are asked to write a program to find length of string, we make use of inbuilt function- strlen (). Obviously, it is the easy method and we can use that. But sometimes, we are asked not to use the strlen (). This program helps to find length of strings without using strlen ().

#include <stdio.h>


 void main()


 char str[20];

 int i = 0;

 printf(“\n Enter any string to find the length of it : “);


  while (str[i] != ‘\0’)


 printf(“\n Length of string entered  is : %d”, i);



Mohit Arora
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