Length of a String without using function strlen()

 

Length of a String without using function strlen()

#include <stdio.h>
int main(){

/* Here we are taking a char array of size 
* 100 which means this array can hold a string 
* of 100 chars. You can change this as per requirement
*/
char str[100],i;
printf("Enter a string: \n");
scanf("%s",str);

// '\0' represents end of String
for(i=0; str[i]!='\0'; ++i);
printf("\nLength of input string: %d",i);
    
return 0;
}

output