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Task/Test-integerness/Perl/test-integerness.pl
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Task/Test-integerness/Perl/test-integerness.pl
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use Math::Complex;
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sub is_int {
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my $number = shift;
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if (ref $number eq 'Math::Complex') {
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return 0 if $number->Im != 0;
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$number = $number->Re;
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}
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return int($number) == $number;
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}
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for (5, 4.1, sqrt(2), sqrt(4), 1.1e10, 3.0-0.0*i, 4-3*i, 5.6+0*i) {
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printf "%20s is%s an integer\n", $_, (is_int($_) ? "" : " NOT");
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}
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