And this also fixes PR#7022 (a highly nested polynomial)
-thomas
On Thu, 12 May 2005, Prof Brian Ripley wrote:
On Thu, 12 May 2005 [EMAIL PROTECTED] wrote:
I suspect that is coincidence, as I can see no source change that would
account for it.
2.0.1 and R-devel work for me and 2.1.0 segfaults with
999 KeepSource = *LOGICAL(GetOption(install("keep.source"),
R_NilValue));
(gdb) bt
#0 0x080ca229 in ParseInit () at gram.y:999
#1 0x080cb305 in token () at gram.y:1530
I am not sure that is right, but I am pretty sure that
static char contextstack[50], *contextp;
just above is an unchecked nesting limit, as in
static void IfPush(void)
{
if (*contextp==LBRACE ||
*contextp=='[' ||
*contextp=='(' ||
*contextp == 'i')
*++contextp = 'i';
}
However, although I thought this was the problem, it seems only to apply
to nested if()s. So I do not currently have a solution.
I was almost right, just a different instance of *++contextp.
Fixed in R-patched, to give
(((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((
Error: contextstack overflow
--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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Thomas Lumley Assoc. Professor, Biostatistics
[EMAIL PROTECTED] University of Washington, Seattle
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