From brahm@alum.mit.edu  Mon Jan  7 15:52:57 2002
From: brahm@alum.mit.edu (brahm@alum.mit.edu)
Date: Mon, 7 Jan 2002 16:52:57 +0100 (MET)
Subject: [Rd] Mishandling missing "..." (PR#1247)
Message-ID: <200201071552.QAA00375@pubhealth.ku.dk>

R> myfun <- function(x, ...) {x[...] <- 0; x}
R> myfun(3)
   Error in myfun(3) : SubAssignArgs: invalid number of arguments

It fails because no ... was passed.  The workaround (and desired behavior) is:
R> myfun <- function(x, ...) {if (missing(...)) x[] <- 0 else x[...] <- 0; x}
R> myfun(3)
   [1] 0

Deja vu?  This is the one piece of my PR#1110 (Oct 3, 2001) that I think may be
a genuine bug (though even that is debatable), and I would like to override
PR#1110 with this report.  This behavior still occurs in 1.4.0.

-- 
                              -- David Brahm (brahm@alum.mit.edu)

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[Rd] Mishandling missing "..." (PR#1247)
brahm@alum.mit.edu