select

[Karl Tombre]

We are running several versions of UNIX on different machines. One of them
is Berkeley 4.2, on a VAX 11/785. We also have some SM90 machines under SMX
5.1, which is supposed to be System 5 compatible.

As we wanted to port some programs from the VAX to the SM90, we got trouble
with a system function called select. It is found in 4.2 but not in SMX.
Looking in the sources of 4.2, I only find some assembler stuff and no C
program.

So my questions are ?

1) What is select for?

2) Does it exist for system V?

3) If not, which function is the equivalent, if any?

Please mail the answer. Many thanks,
-- 
--- Karl Tombre @ CRIN (Centre de Recherche en Informatique de Nancy)
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