Hi Luis,

This was fixed with below commit on the complex_atan2 branch.  That branch has 
not yet been merged into master though.  In principle it could be, but perhaps 
some more of the TODOs need to be taken care of first.  What do you think?

best,
Dere

https://github.com/PDLPorters/pdl/commit/0a9f2a3f5b4fc5e73b3b9d924cac34d48fb002f3

> On Jan 18, 2019, at 8:08 PM, Luis Mochan <[email protected]> wrote:
> 
> In one program I made a mistake today which was difficult to find. To
> illustrate my mistake, consider the following oneliner:
> 
>  $ perl -MPDL -MPDL::Complex -E '$z=1+i; say  $z->real > 0'
> 
> The complex variable is converted to a pdl with two reals both of
> which are greater than zero, so the result is [1 1]. However, if I
> forget to take the real part and compare a complex number to a real one
> 
>  $ perl -MPDL -MPDL::Complex -E '$z=1+i; say  $z > 0'
> 
> I get a segmentation fault. If I run the same script with the debugger
> I get the message
> 
>   
> DB::DB(/home/mochan/perl5/perlbrew/perls/perl-5.28.0/lib/site_perl/5.28.0/x86_64-linux/PDL/Complex.pm:271):
>   271:      &PDL::Complex::_r2C_int($_[0], $r);
>   997 levels deep in subroutine calls!
> 
> The same happens if I try to compare two complex numbers. Though I understand
> it is meaningless to compare complex numbers, maybe a more informative
> error might be generated before or instead of the segfault.
> 
> Regards,
> 
> Luis
> 
> 
> -- 
> 
>                                                                  o
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> 
> 
> 
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