We've had this more general topic on R-help, and also in R-devel recently.
There's one case here where I get the feeling R never gets into
swapping but more directly aborts possibly from a bug we can
more easily fix.
Today I've been working (successfully! - not yet committed) at
fixing str() for
That would be because the product nc * ni overflows in
cbuf = buf = CallocCharBuf(nc * ni);
Since we disallow strings with more than 2^31-1 bytes we could test
and reject this. It might be more future-proof to change the
declaration of
int j, ni, nc;
to
R_xlen_t j, ni, nc;
and le
I've added a size/overflow check before the buffer allocation in
R-devel and R-patched.
It would be a good idea sometime to review the use of
calloc
...
free
patterns to make sure the ... can't raise an error or otherwise jump
and leave the memory pointer dangling.
Best,
luke
On Wed, 1 Jun 2
Hi,
I'd like to hear your opinion about the following proposal to make the
computation of dispersion in GLMs more flexible. Dispersion is used in
summary.glm; the relevant code chunk with the dispersion calculation is listed
below (from glm.R):
summary.glm <- function(object, dispersion = NULL,
