On Mon, 14 Sep 2015, Jeroen Ooms wrote:
On Mon, Sep 14, 2015 at 8:49 PM, Jeroen Ooms wrote:
I tested this hypothesis by replacing '__GNUC__ <= 4' with '__GNUC__
<= 5' and rebuilding R, but this introduces a whole lot of problems
that were not there before. In particular R crashes when using t
On Mon, Sep 14, 2015 at 8:49 PM, Jeroen Ooms wrote:
> I tested this hypothesis by replacing '__GNUC__ <= 4' with '__GNUC__
> <= 5' and rebuilding R, but this introduces a whole lot of problems
> that were not there before. In particular R crashes when using the
> graphics device, which it did not
On Mon, Sep 14, 2015 at 4:16 PM, Duncan Murdoch
wrote:
> I think the reason for the earlier restriction is the assumption that
> eventually gcc will be fixed and this workaround won't be necessary, but
> apparently 5.2.0 still has the same problem.
I tested this hypothesis by replacing '__GNUC__
On 14/09/2015 9:36 AM, luke-tier...@uiowa.edu wrote:
I believe the issue is that on Windows the sqrt function when called
with a NaN does not return the same NaN, as it does on other platforms.
We have
#if (defined(_WIN32) || defined(_WIN64)) && defined(__GNUC__) && \
__GNUC__ <= 4
# defin
I believe the issue is that on Windows the sqrt function when called
with a NaN does not return the same NaN, as it does on other platforms.
We have
#if (defined(_WIN32) || defined(_WIN64)) && defined(__GNUC__) && \
__GNUC__ <= 4
# define R_sqrt(x) (ISNAN(x) ? x : sqrt(x))
#else
# define R_sq
Jeroen,
the difference is that level 3 is using the internal implementation of sqrt in
the compiler instead of calling the sqrt function. The internal path goes to
R_sqrt which is defined as
# define R_sqrt(x) (ISNAN(x) ? x : sqrt(x))
so you could check if that is where the problem happens. It
When building R-devel with gcc 5.2.0 (mingw-w64 v4) on Windows, make
check fails reg-tests-1b.R at the following check:
x <- c(1:2, NA)
sx <- sd(x)
!is.nan(sx)
Here 'sx' should be 'NA' but it is 'NaN'. It turns out this problem
only appears when the function is byte compiled with optimizati
