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NNTP-Posting-Date: Tue, 06 Sep 2011 17:36:38 -0500
Message-ID: <4E66A076.3575@mindspring.com>
Date: Tue, 06 Sep 2011 18:36:38 -0400
From: pete <pfiland@mindspring.com>
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Subject: Re: My latest magnum opus!
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ImpalerCore wrote:
> 
> On Sep 1, 7:24 pm, pete <pfil...@mindspring.com> wrote:
> > /* BEGIN block_swap_test.c */
> > /*
> > ** block_swap swaps two contiguous subobjects.
> > ** (base) is the address of the lower addressed subobject.
> > ** (lo_size) is the size of the lower addressed subobject.
> > ** (hi_size) is the size of the higher addressed subobject.
> > ** If either (lo_size) or (hi_size) or both
> > ** compare equal to zero, then no swapping takes place.
> > */
> > #include <stdio.h>
> >
> > #define STRING  "0123456789A"
> >
> > void block_swap(void *base, size_t lo_size, size_t hi_size);
> 
> Can someone explain in what context one would use this function?  I
> can't quite figure out where I would use such a function in a
> practical setting.  Maybe some kind of bit blit operation?
> 
> I haven't read Programming Pearls, so maybe Jon Bentley gave some
> background.

I was thinking of using it in a 
stable, in place, version of mergesort.

-- 
pete