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Re: bit_size_type - a data type?

From: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
To: richard dot guenther at gmail dot com
Cc: gcc at gcc dot gnu dot org, shafitvm at gmail dot com
Date: Mon, 12 May 2008 07:26:14 EDT
Subject: Re: bit_size_type - a data type?
References: <ba0bd44d0805120258r3df0233ck4998aa1b91d1fbbd@mail.gmail.com> <84fc9c000805120311y2d474049od36ff068ef66d268@mail.gmail.com>

> bitsizetype is a type that can hold any values of sizetype *
> BITS_PER_UNIT so we can safely do bit-size calculations without overflow.
> This type shouldn't end up used in code though.

Unfortunately, it does, though not in C.  Ada's 'Size attribute returns
the size in bits, so the proper type for that computations is bitsizetype,
though many computations end up being constant-folded.

Follow-Ups:
- Re: bit_size_type - a data type?
  - From: Richard Guenther
- Re: bit_size_type - a data type?
  - From: Florian Weimer

References:
- bit_size_type - a data type?
  - From: Mohamed Shafi
- Re: bit_size_type - a data type?
  - From: Richard Guenther

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