Re: Pointer to int

[canbaby <canbaby@21cn.com>]

Ronaldo Zacarias Afonso wrote:

>  Hello everybody, 
>
>  I'm iniciating in the C programming language and there are some things 
>that I realy need to understand, so the question is: 
>
>  In the code: 
>
>  int i; 
>  struct some_struct *ptr; 
>
>  ptr = &some_other_struct; 
>
>  i = (int) ptr; 
>
>
>  1) Is the last sentence a valid one? 
>  2) If it is, what is realy happening? 
>
>note - It seems very stranger to me. A struct pointer being "transformed" 
>into a int variable. 
>
>  Thanks. 
>
>
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>
>  
>
yes,it's a validate one.
now the var i have the the some_other_struct address value,you could 
reconstruct the struct like this:
struct some_struct *newstruct = (struct some_struct *)i;
then freely use the newstruct.
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