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Subject: Re: GNAT parameter passing, C-style?
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Date: Tue, 06 Jan 2004 13:46:58 GMT
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"Keith Thompson" <kst-u@mib.org> wrote in message
news:lnd69ym7ga.fsf@nuthaus.mib.org...
> The term "vanilla" implies that the original K&R C is the default
> version of the language.  It isn't.  The 1990 ISO C standard is almost
> universally implemented these days (though not always perfectly); it's
> difficult to find a C compiler that doesn't implement prototypes, for
> example.  (My ancient SunOS 4.1.3 box has a K&R C compiler, but I
> rarely use it, since I've also installed gcc.)

I used the term "vanilla" because of its common usage in the C community. I
did not mean to imply that K&R C is the most common version of C. Certainly
ANSI C is available for every current platform that I am aware of, and the
vast majority of the C code written in the last few years has been written
in ANSI C.

> Nitpick: it's "deprecates".

My apologies. This is the type of mistake that my spell checker will not
protect me from!

> The latest ISO C standard, C99, requires full declarations for
> functions, but it's not widely implemented yet; so far, it's not
> catching on as quickly as C90 did.  (C90, the 1990 ISO C standard, is
> essentially identical to C89, the 1989 ANSI C standard.)

One of the reasons that C99 is not catching on as quickly as C89 / C90 is
that so much of the C market has transitioned to C++, where again full
declarations are required. So all of this is quickly becoming a moot point.