[ILUG] Re: SCO v Linux

[Lars Hecking]

Paul Kelly writes:
> Lars Hecking wrote:
> > It doesn't have memcpy().
> > But I trust it did have bcopy()?
> 
> It did. I was trying to compile up GNU sh-utils at the time and memcpy()
> was one of the major stumbling blocks. bcopy() wasn't good enough it
> would seem.

 This is from the latest fileutils, which are also maintained by
 Jim Meyering.

#if !defined (HAVE_BCOPY) && defined (HAVE_MEMCPY) && !defined (bcopy)
# define bcopy(from, to, len) memcpy ((to), (from), (len))
#endif

 (Or define it the other way round, as needed)

 bcopy() does even more than memcpy(), in most implementations it can
 copy overlapping strings, which memcpy() cannot. The ANSI C function
 for that is memmove().