Re: literals for an int128 class

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From	Ian Collins <ian-news@hotmail.com>
Newsgroups	comp.lang.c++
Subject	Re: literals for an int128 class
Date	Wed, 04 May 2011 08:53:34 +1200
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On 05/ 4/11 08:39 AM, cps wrote:
> I am considering writing an int128 class as a programming exercise.
> Before I start (and I have a fair idea of how to do it) I was
> wondering what I can do about literals and the assignment operator.  I
> would like to be able to use integer literals with the assignment and
> other operators with literals that are sized at 128 bits.
>
> E.g. I'd like to be able to do:
>
>       uint128 myInt128 = 184467440737095516160;
>
>
>       Note that the foregoing literal would produce an error (correctly
> so) if I attempted to assign it to an uint64 because it is (2^64) *
> 10.
>
>       Is there any way I can set it up to deal with large literals?
>
>      Or am I going to have to use strings and parse them?

The only way a system could have 128 bit literals would be if it had a 
128 bit type!

You'll have to settle for strings.

-- 
Ian Collins

Thread

literals for an int128 class cps <chrissusie8@gmail.com> - 2011-05-03 13:39 -0700
  Re: literals for an int128 class Victor Bazarov <v.bazarov@comcast.invalid> - 2011-05-03 16:51 -0400
  Re: literals for an int128 class Ian Collins <ian-news@hotmail.com> - 2011-05-04 08:53 +1200
  Re: literals for an int128 class Pete Becker <pete@versatilecoding.com> - 2011-05-03 17:17 -0400
  Re: literals for an int128 class Michael Doubez <michael.doubez@free.fr> - 2011-05-04 01:38 -0700
    Re: literals for an int128 class Ian Collins <ian-news@hotmail.com> - 2011-05-04 21:15 +1200
      Re: literals for an int128 class Michael Doubez <michael.doubez@free.fr> - 2011-05-06 01:03 -0700
        Re: literals for an int128 class Pete Becker <pete@versatilecoding.com> - 2011-05-06 08:00 -0400
          Re: literals for an int128 class Victor Bazarov <v.bazarov@comcast.invalid> - 2011-05-06 09:30 -0400
          Re: literals for an int128 class Michael Doubez <michael.doubez@free.fr> - 2011-05-06 08:00 -0700

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