Pointer

Pointer

[Ronaldo Zacarias Afonso]

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  Hello everyone, 

  This is a newbie´s question, but if someone could help me! 
  How can I assign an address value to a pointer, for example: I need a 
pointer that points to address 0x12345, so I can manipulate the content of 
that address. 
  Is it possible? 
  Can anybody help me? 

  Thanks! 

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Re: Pointer

[Hossein Mobahi]

Hi

You must not only determine the address, but also the
data type. In fact, a vaule in a memory location can
have a different types and its correct interpretation
is not possible unless its type in known. Here is an
example for integer type:

main()
{
  int *x ;
  ...
  ...
  x=(int *) 0x1234 ; // Set the pointer
  *x=1 ; // Set its content (integer)
}

Hope it helps

--Hossein

--- Ronaldo Zacarias Afonso <r_zaca@ig.com.br> wrote:

>   Hello everyone, 
> 
>   This is a newbie´s question, but if someone could
> help me! 
>   How can I assign an address value to a pointer,
> for example: I need a 
> pointer that points to address 0x12345, so I can
> manipulate the content of 
> that address. 
>   Is it possible? 
>   Can anybody help me? 
> 
>   Thanks! 
> 
>
_________________________________________________________________________________
> Quer mais velocidade?
> Só com o acesso Aditivado iG, a velocidade que você
> quer na hora que você precisa.
> Clique aqui: http://www.acessoaditivado.ig.com.br
> 
> 



		
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Re: Pointer

[Hossein Mobahi]

Hi

You must not only determine the address, but also the
data type. In fact, a vaule in a memory location can
have a different types and its correct interpretation
is not possible unless its type in known. Here is an
example for integer type:

main()
{
  int *x ;
  ...
  ...
  x=(int *) 0x1234 ; // Set the pointer
  *x=1 ; // Set its content (integer)
}

Hope it helps

--Hossein

--- Ronaldo Zacarias Afonso <r_zaca@ig.com.br> wrote:

>   Hello everyone, 
> 
>   This is a newbie´s question, but if someone could
> help me! 
>   How can I assign an address value to a pointer,
> for example: I need a 
> pointer that points to address 0x12345, so I can
> manipulate the content of 
> that address. 
>   Is it possible? 
>   Can anybody help me? 



	
		
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