On 12/18/2011 12:12 PM, Juan Jose Garcia-Ripoll wrote:
On Sun, Dec 18, 2011 at 8:52 PM, Paul Bowyer <pbow...@olynet.com
<mailto:pbow...@olynet.com>> wrote:
I've just gotten a test copy of the 64-bit version of PCLinuxOS
running on another computer and as part of checking it out, I
have tried to set up ECL on it. Everything seems to have gone
correctly and ECL installed apparently without problems, but when
I ran the tests, I experienced more failures in the ansi.log file
for the 64-bit install than I get with the 32-bit install that I
have been using.
Some of the ANSI tests are not very "correct" I would say. The tests
check on the accuracy of certain functions, but what is accurate is
something to be discussed. The differences between 32- and 64-bit
platforms, or between operating systems in the same machine, are due
to how the C library computes those mathematical functions. Some of
them have enough accuracy for long-double types, some don't. Some work
internally with double-float precision and have more accuracy than
what the test suite expects. Some signal overflows, some don't. etc, etc.
The other two tests
MISC.528
MISC.529
are also probably due to the fact that the code uses internally double
types for the products, exceeding the precision of the interpreted
code. I also see them in my computer.
Unless the
Juanjo
--
Instituto de Física Fundamental, CSIC
c/ Serrano, 113b, Madrid 28006 (Spain)
http://juanjose.garciaripoll.googlepages.com
Juanjo:
Thanks for easing my doubts. I assume the unfinished "Unless the" was
meant to convey that there is no reason to assume there are problems in
the 64-bit install that I need to worry about.
Paul
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