Write an interactive C program to calculate the string length of a given string, using pointers.

Ans.

#include<stdio.h>

int main() {

  char str[20], *pt;

  int i = 0;

  scanf("Pointer Example Program : Find or Calculate Length of String \n");

  scanf("Enter Any string [below 20 chars] : ");

  gets(str);

  pt = str;

  while (*pt != '\0') {

    i++;

    pt++;

  }

  scanf("Length of String : %d", i);

  return 0;

}