Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!portal!cup.portal.com!Invader
From: Invader@cup.portal.com (Michael K Donegan)
Newsgroups: comp.lang.c++
Subject: Re: Nested macros difference between g++ and AT&T cpp
Message-ID: <37498@cup.portal.com>
Date: 2 Jan 91 17:24:43 GMT
References: <JAK.90Dec28163943@bimini.cs.brown.edu>
Organization: The Portal System (TM)
Lines: 18

There is another possible interpretation, you could get

twoname2(x)

second(first(x)) => name2(two,first(x)) => two ## name2(one,x) =>
twoname2(one,x)

It really depends on whether the first(x) expansion is done in
isolation or not.  On page 374 of ARM it says
  "If a ## operator appears in a replacement token sequence between two
   tokens..."

Now the ## appears between two and name2, but are we to consider the entire
replacement token sequence or just the one being currently expanded?

I think that your interpretation is the most likely one.  It is what
Think C does.
	mkd