Just thought of taking a no. having digits greater than or equal to 10, as user input and simply print it. But this code doesnot work. Please help..
Code:#include <stdio.h> #include <alloc.h> int main(void) { void *p=malloc(10); scanf("%p",&p); printf("%p",p); return 0; }
Last edited by HBK; 07-17-2011 at 02:19 AM.
So C is going to be your third language then? Because English sure doesn't seem to be your first.
Quzah.
Hope is the first step on the road to disappointment.
Originally Posted by quzah
Actually english was my 4th Lang.!!! Anyways, I have Edited it.....now, l would like u talk "in C".....!!!
You cannot do anything with a void pointer before you cast it to a type.
Warning: Some or all of my posted code may be non-standard and as such should not be used and in no case looked at.
You may as well just use stdlib.h, since alloc.h is rather old fashioned.Code:#include <alloc.h>
What is that format specifier supposed to be for? Also, since you have a pointer, you don't need the address of there. You also don't free what you allocate.Code:scanf("%p",&p); printf("%p",p);
Quzah.
Hope is the first step on the road to disappointment.
You can assign a value to it.
Quzah.
Hope is the first step on the road to disappointment.
Haha...thank your quzah for keeping me honest.You can assign a value to it.
Quzah.
Warning: Some or all of my posted code may be non-standard and as such should not be used and in no case looked at.
You can also print them: %p actually expects a void pointer.
Fair enough, I assumed there was an underlying question....I guess I was wrong.%p
Reads in a pointer to be stored in a void*. The format of this pointer should be the same as that which is outputted with printf() and the "%p" format specifier.
Warning: Some or all of my posted code may be non-standard and as such should not be used and in no case looked at.
That format specifier (%p) reads a pointer. And I think u need the address of operator there because in the the format specifier i have given %p. This code does what it is suppossed to do but for 8digit nos. only. It only prints the first 8digits when i enter a 10digit no.
Can't realy understand what's going on..........
That format specifier (%p) reads a pointer. And I think u need the address of operator there because in the the format specifier i have given %p. This code does what it is suppossed to do but for 8digit nos. only. It only prints the first 8digits when i enter a 10digit no.
And in Pelles C it only prints the last 8digits(ignoring the 1st two digits) when i enter a 10digit no.
Can't realy understand what's going on..........
You and me both don't really understand what's going on.
You allocate p with malloc(), only to later leak that memory by scanning for a value for p. Moreover, the value for p is a memory address. Scanning some random address from the user isn't going to necessarily give p a useful address. This idea is frought with problems.
To be absolutely clear with you, pointers have nothing to do with numbers. Use an int.And in Pelles C it only prints the last 8digits(ignoring the 1st two digits) when i enter a 10digit no.
But nither 'int' nor 'long int' can hold a no. with 10 digits (like, 90387569860)!!!
I said what I want to do.....and I'm clear i guess......Let someone post a working code doing what I want to do.......
Just what is it you think you are going to be putting there? What can you possibly be typing there that would be useful input? I'm genuinely curious.Do you even know what you want to do?
Quzah.
Hope is the first step on the road to disappointment.
I want to take a no.(conataining 10-15digits) from user and simply print it then!!!
I guess, I'm clear now. I failed doing it....i tried many ways(using long int and all...) that i could think of, but............
Share ur way of doing it.....waiting....eagerly..................
