Hi,
I have this test failure in gsl-1.16 - using a mingw64 port of gcc-4.8.2
(x64):
###########################
==================================
gsl 1.16: sys/test-suite.log
==================================
# TOTAL: 1
# PASS: 0
# SKIP: 0
# XFAIL: 0
# FAIL: 1
# XPASS: 0
# ERROR: 0
.. contents:: :depth: 2
FAIL: test
==========
FAIL: gsl_isnan(nan) (-1 observed vs 1 expected) [310]
###########################
This failure occurs because math.h's isnan() has returned "-1" instead of
the expected "1".
However, I believe (perhaps mistakenly) that this gsl test should be testing
for "true" not "1".
Interestingly, isnan() on the other mingw64 compilers I have at my disposal
*does* return "1" for a nan.
(And these other compilers include a 32-bit version of gcc-4.8.2 from the
same vendor.)
Cheers,
Rob
