Question

Hello, I have my piece of C programming code and I have a pointer initialized to point to my array and I need help to display the contents of my array using a while loop or do-while loop. The stop condition should be when the pointer reaches '\0'. The code is below:

#include <stdio.h>

int main ()

{
  
char array[80];

printf("Enter a string: ");
scanf("%[^\n]", &array);
printf("%s\n", array);

char * p;   

p = array;  
  
  
}

Answer 1

Problem : C programming code and I have a pointer initialized to point to my array and I need help to display the contents of my array using a while loop or do-while loop. The stop condition should be when the pointer reaches '\0'.

Program :

#include <stdio.h>
#include <string.h>
int main (){
   char array[80];
   printf("Enter a string: ");   //taking the string from the user
   scanf("%[^\n]", &array);
   printf("printing the string normally : %s\n\n", array); //printing the string normally
   char * p;    //declaring the variable
   p = array; //pointer p stores first element address of the string
  
   int i = 0;
   printf("printing the string using the pointers : ");
   while(*(p + i) != '\0'){
       printf("%c",*(p + i)); //prints the string using pointers
       i++;
   }  
}

OUTPUT