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Message from discussion Testing if a pointer is valid
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jacob navia  
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 More options Sep 23 2011, 5:08 pm
Newsgroups: comp.lang.c
From: jacob navia <ja...@spamsink.net>
Date: Fri, 23 Sep 2011 23:08:37 +0200
Local: Fri, Sep 23 2011 5:08 pm
Subject: Re: Testing if a pointer is valid
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Le 23/09/11 23:01, Ian Collins a écrit :

> On 09/24/11 08:49 AM, Malcolm McLean wrote:
>> On Sep 23, 9:02 pm, jacob navia<ja...@spamsink.net> wrote:

>>> You allocate stuff with gc_malloc() and never free it. That is all
>>> there is. I do not see why that is no longer 'C'.

>> gc_malloc() can't be implemented in standard C, and requires intimate
>> knowledge of the architecture to sweep for orphaned memory blocks and
>> add them to the free list. That's enught o classify it as an extension
>> rather than simply as a new function. There's also the practical
>> reason that memory allocation is very fundamental, it changes the way
>> most programs are written.

> I don't see why people get so hung up in garbage collection. The
> compiler I mainly use has shipped with a collector since the 90s and it
> is still a standard C compiler. If I want to use the collector, all I
> have to do is link it with my standard C executable. Does the act of
> linking a garbage collector somehow make my code non-standard?

Well, that is gcc. Gcc can do whatever they want, the problem
is when lcc-win does the same :-)

THEN

"It is not C"
"He is selling is Warez"

etc etc.


 
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