Hello monks and nuns,

I'm facing a strange behaviour of PDL's setops. The intersection of a set having a single value and the empty set produces the singleton instead of the empty set. Am I missing something or is this a bug? 

#!/usr/bin/perl

use v5.16;
use warnings;
use PDL;

say $PDL::VERSION;
my $e = zeroes 0;
say "$_ and $e: ", setops $_, 'AND', $e for pdl(1), ones(1), ones(4), 
+sequence(4);

__DATA__
2.025
1 and Empty[0]: [1]
[1] and Empty[0]: [1]
[1 1 1 1] and Empty[0]: [1]
[0 1 2 3] and Empty[0]: Empty[0]

[download]

Greetings,
-jo

$gryYup$d0ylprbpriprrYpkJl2xyl~rzg??P~5lp2hyl0p$

In reply to PDL's error or mine? by jo37

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