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List:       kde-devel
Subject:    Re: casting an 'int' to a class
From:       Andrew Sutton <ansutton () sep ! com>
Date:       2002-01-22 14:49:47
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On Monday 21 January 2002 10:30 pm, Ellis Whitehead wrote:
> > 1) remove the &
> > 2) I *think* some platforms (sparc64?) have sizeof(int) != sizeof(void*)
> >
> > Of course, if sizeof(int) and sizeof(void*) were the same, and the
> > variable is private, you should be able to just change the type.
>
> I don't really follow you...  What's this about a void*?  I'm not wanting
> to point to anything, but rather use an 'int' as though it were a
> particular class which contains a single 'int' member.

as far as my experience goes, all pointers are treated the same. it's just a 
pointer. you can cast it to whatever you want.

> So if I say:
> 	int b = 123;
> 	cout << ((A*)&b)->a << endl;
> it prints 123.

i don't really think i've understood this whole thread. why would you need to 
cast the address of an integer into a class pointer to call a function that 
returns a reflexive value of the original integer. why not just use the 
integer to begin with? besides there are tons of ways to solve this 
legitimately.

andrew sutton
ansutton@sep.com
 
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