Learn C language Part 38 Pointers of Pointers in C language

#include <stdio.h>

#include <conio.h>



main()

{



int value=100;

int *ptr;

int **pofptr;





ptr=&value;

pofptr=&ptr;





printf("value of variable is %d \n",value);

printf("value of variable through ptr %d \n",*ptr);

printf("value of variable through pofptr %d ",**pofptr);











}

Learn C language Part 38 Pointers of Pointers in C language

#include <stdio.h>

#include <conio.h>



main()

{



int value=100;

int *ptr;

int **pofptr;





ptr=&value;

pofptr=&ptr;





printf("value of variable is %d \n",value);

printf("value of variable through ptr %d \n",*ptr);

printf("value of variable through pofptr %d ",**pofptr);











}

Learn C language Part 37 Arrays of Pointers in C language

#include <stdio.h>

#include <conio.h>



main()

{



int x[3]{100,200,300};

int i=0;

int *ptr[3];



for(i=0;i<3;i++)

{

ptr[i]=&x[i];

}







printf("\nWithout pointers\n...............................\n");



for(i=0;i<3;i++)

{



printf("values at index %d = x[%d] \n",i,x[i]);



}



printf("\nWith pointers\n...............................\n");



for(i=0;i<3;i++)

{



printf("values at index %d = x[%d] is saved at @ %d, address of array is %d  \n",i,*ptr[i],&ptr[i],ptr[i]);



}









}