Hi Sebastian, I think you may be one of the first person to report using cygwin 64. I think it makes sense to support that platform as it is becoming more common. Could you report the value of `sys.platform` on cygwin64 ? The first place I would look for cygwin-related FPU issues is there: https://github.com/numpy/numpy/blob/master/numpy/core/setup.py#L638 David On Sat, Jan 31, 2015 at 9:53 PM, Sebastien Gouezel < sebastien.gouezel@univ-rennes1.fr> wrote:
Dear all,
I tried to use numpy (version 1.9.1, installed by `pip install numpy`) on cygwin64. I encountered the following weird bug:
import numpy with numpy.errstate(all='raise'): ... print 1/float64(0.0) inf
I was expecting a FloatingPointError, but it didn't show up. Curiously, with different numerical types (all intxx, or float128), I indeed get the FloatingPointError.
Same thing with the most recent git version, or with 1.7.1 provided as a precompiled package by cygwin. This behavior does not happen on cygwin32 (I always get the FloatingPointError there).
I wonder if there is something weird with my config, or if this is a genuine reproducible bug. If so, where should I start looking if I want to fix it? (I don't know anything about numpy's code)
Sebastien
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