Re: [Plplot-devel] floating point exception in example 29

[Alan W. I. <ir...@be...>]

Hi Hazen:

I have just had a further idea. For comprehensive testing situations
it might be good to have the option to call feenableexcept (the C
library function that you used to help debug x29c.c that should be
available for c99 according to its Linux man page) from within the
PLplot library (say as the result of plinit).  If you agree (a) that
idea would work and (b) it would be useful, would you be willing to
implement it in C for the case when the PLPLOT_ENABLE_FLOAT_EXCEPT C
macro is #defined?  If so, I would be willing to do the rest on the
CMake side (create a CMake option for this and propagate it to the
corresponding C macro for the compilation of the source file where you
have implemented the feenableexcept call).

Alan
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Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state
implementation for stellar interiors (freeeos.sf.net); the Time
Ephemerides project (timeephem.sf.net); PLplot scientific plotting
software package (plplot.sf.net); the libLASi project
(unifont.org/lasi); the Loads of Linux Links project (loll.sf.net);
and the Linux Brochure Project (lbproject.sf.net).
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Linux-powered Science
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