[LC++]sizeof...

[Palaka, Sasidhar]

Hi,
  Thanks for correcting me, you are right. I missed out that type casting
part.
But, say if I am interested in implementing 'sizeof' as an exercise
question, 
Is there any other way out apart from what I suggested?

Thanks,
Sasi. 

-----Original Message-----
From: ianezz at kinsale.sodalia.it [mailto:ianezz at kinsale.sodalia.it]
Sent: Monday, August 05, 2002 8:50 PM
To: tuxcpprogramming at lists.linux.org.au
Subject: RE: [LC++]sizeof...


Palaka, Sasidhar, pigiando tasti a caso sul citofono, ha scritto:

 > Basically the idea is to increment the pointer and then subtract to give
the
 > size.

Try it with an `int'... 

the difference between pointers is in bytes/sizeof(pointed type)... so
it gives back always `1'.

Of course you could try casting the pointers to some unsigned type
large enough before subtracting them, but then how do you know how
much is ``large enough''? 

Use sizeof() and live in peace.

-- 
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