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From: Ed Avis <ed@membled.com>
Newsgroups: comp.lang.ada,comp.lang.c++.moderated
Subject: Re: C bug of the day
Date: 14 Jun 2003 20:42:45 -0400
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LLeweLLyn <llewelly.at@xmission.dot.com> writes:

>>In Ada, GC is automatic for stack variables,

>In C++ GC is automatic for stack variables as well

I think this is abusing the term 'garbage collection', consider:

    int* f()
    {
        int x = 5;
        return &x;
    }

If C++ really did have garbage collection for stack variables, then x
would not be destroyed on exit from the function since there is still
a live pointer to it.  What C++ has is something much cruder - any
stack variable is destroyed on exit from the scope it was declared in.

You could say 'C++ does have garbage collection for stack variables,
you're just not allowed to return pointers or references to them', but
that amounts to the same thing.

-- 
Ed Avis <ed@membled.com>

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