Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

wats the diference btwen constant pointer and pointer to a
constant.pls give examples.

Answer Posted / surya mukherjee

//POINTER TO CONSTANT vs CONSTANT POINTER

#include<iostream.h>
#include<conio.h>

//POINTER TO CONSTANT

void f1()
{
int i=10,j=20;
const int* pi=&i;
cout<<*pi<<endl;
//*pi = 200; ERROR : CANNOT MODIFY A CONST OBJECT IN f1()
pi=&j; // IT CAN POINT ANOTHER CONSTANT
cout<<*pi<<endl;
}

//CONSTANT POINTER

void f2()
{
int i=100,j;
int* const pi=&i;
cout<<*pi<<endl;
*pi = 200; // IT CAN ASSIGN ANOTHER VALUE AT THIS ADDRESS
cout<<*pi<<endl;
//pi=&j; ERROR : CANNOT MODIFY A CONST OBJECT IN f2()
}


void main()
{
clrscr();
f1();
f2();
getch();
}

Is This Answer Correct ?    10 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

a=10;b= 5;c=3;d=3; if(a printf(%d %d %d %d a,b,c,d) else printf("%d %d %d %d a,b,c,d);

1067


What is the purpose of the following code? Is there any problem with the code? void send(int count, short *to, short *from) { /* count > 0 assumed */ register n = (count + 7) / 8; switch (count % 8) { case 0: do { *to = *from++; case 7: *to = *from++; case 6: *to = *from++; case 5: *to = *from++; case 4: *to = *from++; case 3: *to = *from++; case 2: *to = *from++; case 1: *to = *from++; } while (--n > 0); } }

2433


What does c mean in standard form?

1101


Describe static function with its usage?

1152


Explain c preprocessor?

1044


Explain what’s a signal? Explain what do I use signals for?

1053


what is the syallabus of computer science students in group- 1?

2263


c program to compute AREA under integral

2336


a number whose only prime factors are 2,3,5, and 7 is call humble number,,write a program to find and display the nth element in this sequence.. sample input : 2,3,4,11,12,13, and 100.. sample output : the 2nd humble number is 2,the 3rd humble number is 3,the 4th humble number is ,the 11th humble number is 12, the 12th humble number is 14, the 13th humble number is 15, the 100th humble number is 450.

5000


Should a function contain a return statement if it does not return a value?

1016


What are integer variable, floating-point variable and character variable?

1183


Disadvantages of C language.

1045


Is there anything like an ifdef for typedefs?

1094


Why do we need a structure?

979


Explain what is the purpose of "extern" keyword in a function declaration?

1028