For byte by byte comparison of 2 files the linux function `cmp` works a great
many times faster than a written C-program which exits at first difference
found.
But `cmp` returns a bool for 'equal or not equal' and writes the position of
the first byte found different to <stdout>, which I of course can redirect to
disk and reread from disk.
But I do not want to spoil the time on xx00 GB of files and copy the number
directly ( via environment, fork or assembly ) into a C|C++ variable for
further processing and skip the diskwrite.
Can anybody tell me how to realize that or where to find the info? It is not
in Richard Stevens and I cannot find the source of `cmd` on my Suse 8.2
system.
Thanks
Nieuwenhuizen
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Prof. Ir. J.K. Nieuwenhuizen
5624 KZ 8 The Netherlands
Tel. [{..31 | 0}40]2442226
email : hans@xxxxxxxxxxxxxxxxxxx
internet : www.nieuwenhuizen-jk.nl
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