WHAT DOES NARGS() DO?

[LINNDR%VUENGVAX.BITNET at wiscvm.ARPA]

Some recent postings mentioned a function called nargs() and discussed
its nonportability. What does this function do and under what version of
UN*X would I expect to find it. My SVR2 materials for the VAX do not seem
to include it.

David Linn
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