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Message from discussion Buddy System Memory Allocator
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Rod Pemberton  
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 More options Nov 7 2012, 8:10 pm
Newsgroups: comp.lang.forth
From: "Rod Pemberton" <do_not_h...@notemailnotz.cnm>
Date: Wed, 7 Nov 2012 20:14:48 -0500
Local: Wed, Nov 7 2012 8:14 pm
Subject: Re: Buddy System Memory Allocator
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"Paul Rubin" <no.em...@nospam.invalid> wrote in message

news:7xhap0di7e.fsf@ruckus.brouhaha.com...

> "Rod Pemberton" <do_not_h...@notemailnotz.cnm> writes:
> >> assembler and C days we relied on static allocation (which worked
> >> perfectly) and in my later higher-level language (VB and .Net) it was
> >> handled automagically.
> > It's "automagically" done for you in C too....
> > malloc() and free() ...

> I think "automagically" in HLL's these days means "garbage collected".

Ah, that'd be a different meaning ...

> I get the impression that in C++11, smart pointers (i.e. reference
> counted) are included in the standard library and generally considered
> preferable to manual allocation with new and delete (equivalent to
> malloc/free).

Just how "equivalent" is equivalent?

It's my understanding from what I've read that coding an operating system in
C++ is very difficult, primarily because of new and delete.  It's not
difficult to code an OS in C.  I.e., they are not equivalent.

I'll take it that you mean that new and delete are used in C++ for memory
allocation, whereas malloc and free are used in C for memory allocation.

Rod Pemberton


 
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