Args: var number & var types

[Joseph Nathan Hall]

In article <cWW=o4y00XcRh2E04h at andrew.cmu.edu> jv0l+ at andrew.cmu.edu (Justin Chris Vallon) writes:
>Is there any way to declare a function to have two arguments point to the same
>place in the stack-frame?  Let's say that I want to write the implementation of
>foo which takes an optional argument based upon the first parameter:
...

You can do this by a) using a variable-length argument list or b) passing your
argument(s) in a union.  Approach b) wastes a little space but is more
conventional, hence more easily understood and probably easier to port between
older compilers.

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