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From: "Pascal Obry" <p.obry@der.edf.fr>
Subject: Re: Ada or C++ acting 'correctly' here?
Date: 1999/03/02
Message-ID: <7bg7pi$fgf$1@cf01.edf.fr>#1/1
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References: <7b8c7u$sj1@drn.newsguy.com> <7bg0pc$5a4$1@ffx2nh3.news.uu.net>
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Newsgroups: comp.lang.ada,comp.lang.c++
Date: 1999-03-02T00:00:00+00:00
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Willliam V a �crit dans le message <7bg0pc$5a4$1@ffx2nh3.news.uu.net>...
>500000000*7 is a negative quantity.  C++ prints out
>what you ask it to do.
>try unsigned long l = 500000000*7;
>cout << l;
>or even
>cout << ((unsigned long )500000000)*7);
>If Linux 'd make the unsigned long to be 64 bit, you Ada would
>have compiled fine. So the Ada compiler you are using is
>relying very heavily on the underlying C machinery. Don't be
>too fast to blame C or C++


Certainly not. What does it means anyway that "your Ada compiler is
relying on the underlying C machinery" ????

It is just that the Ada compiler rely on the underlying architecture, how
could it be otherwise anyway !

The 32 bits or 64 bits attributes are coming from the architecture not
from the C compiler. So the only thing we know now is that a machine
word (in this example) is 32 bits.

And now again, Ada pay attention to that but C/C++ does not.

Pascal.