Re: detecting two's complement arithmetics

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From: Mycroft Holmes (m.holmes_at_nospam.it)
Date: 11/02/04 

Date: Tue, 2 Nov 2004 17:35:48 +0100

> What do you mean by an unsigned two's complement integer?

By definition, -x is the same as ~x+1.
I have some templates where T is granted to be an integer and I call
T::unary minus.

I know that Cray integer arithmetics is a bit (!) different.
Unfortunately I don't happen to have one here...

> I guess in theory one integer type could be two's complement and another
> could be something else. That could break it.

true, but I'm testing all integers anyway. 

-- 
 The set of solutions is never empty.
 Two solutions together form a new problem.
-- Mycroft Holmes

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