From:	"John M. Aldrich" <fighteer AT cs DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Converting doubles to ints and chars!?
Date:	Tue, 22 Jul 1997 22:29:59 +0000
Organization:	Two pounds of chaos and a pinch of salt
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To:	djgpp AT delorie DOT com
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Christian Granström wrote:
> 
> How do I convert an double to an int or an unsigned char???

Basic C/C++ question... consult a book or ask on comp.lang.c or
comp.lang.c++.

> I tried to typecast them like:
> 
> double X:
> unsigned char Y;
> 
> Y = (unsigned char X);

You put the type in parentheses before the value to be changed.  That
should look like:

Y = (unsigned char) X;

BTW, this sort of typecast can have unpredictable effects if X has a
value greater than 255.99999.

> Maybe its not supposed to be done this way at all but the
> compiler does'nt complain about it!!

It may be that the compiler thinks you are declaring X in that
statement, and therefore allocates an automatic variable.  Y would then
be assigned the value of that uninitialized variable.  It's strange...
and only possible in C++.  If you compiled that as C it would have
caused a syntax error.

-- 
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|      John M. Aldrich       | "Sin lies only in hurting other      |
|       aka Fighteer I       | people unnecessarily.  All other     |
|   mailto:fighteer AT cs DOT com   | 'sins' are invented nonsense."       |
| http://www.cs.com/fighteer |                 - Lazarus Long       |
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