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Subject: Re: Improving Ada's image - Was: 7E7 Flight Controls Electronics
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From: Stefan Nobis <stefan@snobis.de>
Organization: ESN - EDV-Beratung, Sicherheit, Netzbetreuung
Date: Wed, 02 Jun 2004 12:59:32 +0200
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Date: 2004-06-02T12:59:32+02:00
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"Per Dalgas Jakobsen" <i@hate.spam> writes:

> For C++, templates should be the answer, but unfortunately quite a bit of
> "implementation specific freedom" renders this feature "less useful".
> http://www.mozilla.org/hacking/portable-cpp.html (a bit old, but still valid
> to some extend).

No, that's not valid today! The page is dated even before the
release of the official ISO Standard for C++ and that's over six
years since.

Today even MS Visual C++ supports templates quite good.

> And just exactly how big is an int? Well, we could define an int16 for a
> signed 16 bit integer, int32 ..., etc. But how do you get it into your code:
> You include a header-file with sized integer types.
> Then another guy wants to use your code, but he has his own header-file with
> sized integer types, unfortunately this guy has named his unsigned 8 bit as
> uchar8, and you called it uint8. Now what? Things gets very messy, very
> fast.

There are standard types for this kind of sizing quite a time
around now (see stdint.h -- OK, it's ISO C99 but most C++
compilers support this too and there's a cstdint.hpp from
boost.org for C++).

> Did I miss the point here?

No, but your information are a bit outdated in some areas.

-- 
Stefan.