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From: bill@cafe.net (Kaz Kylheku)
Subject: Re: Which language pays most 17457 -- C++ vs. Java?
Date: 1997/12/22
Message-ID: <67l3dl$666$1@brie.direct.ca>#1/1
X-Deja-AN: 309265178
References: <199712121931.LAA25389@sirius.infonex.com>
 <ObfZp4YD9GA.296@upnetnews02.moswest.msn.net> <67iipp$ktj$1@darla.visi.com>
 <882756127snz@genesis.demon.co.uk>
Reply-To: kaz@cafe.net
Organization: Internet Direct
Newsgroups: 
 comp.lang.fortran,comp.lang.c,comp.lang.c++,comp.lang.eiffel,comp.lang.java.programmer,comp.lang.smalltalk,comp.lang.perl.misc,comp.lang.ada,comp.edu
Date: 1997-12-22T00:00:00+00:00
List-Id: <comp.lang.ada>


In article <882756127snz@genesis.demon.co.uk>,
Lawrence Kirby <fred@genesis.demon.co.uk> wrote:
>In article <67iipp$ktj$1@darla.visi.com>
>           seebs@plethora.net "Peter Seebach" writes:
>
>>In article <ObfZp4YD9GA.296@upnetnews02.moswest.msn.net>,
>>William J. Leary Jr. <Bill_Leary@msn.com> wrote:
>>>Not that I've ever noticed.  I frequently use C compilers to target embedded
>>>systems.
>>
>>Then you're using "freestanding environments", which are a separate language.
>>The library is, indeed, part of the hosted environment form of C.
>
>Aren't the standard library identifiers with external linkage reserved
>even in a freestandinhg environment?

Yes they are! Absolutely! A freestanding implementation of C is allowed
to provide as much or as little of the standard library.

In any case, the C standard does not define any notion of a ``freestanding
program''. In particular, it provides no interpretation for the meaning
of such programs. 

For instance, a ``freestanding program'' might begin execution in a function
called 'init'. But the C standard only provides an interpretation for programs
that start in a function 'main' that returns int and takes either no arguments
or exactly two arguments of type int and char ** respectively.
A conforming implementation of C could well reject a program whose
startup function is called init.

Strictly speaking, such freestanding programs are not standard C; they are
examples of a local adaptation of C.