Test integerness: Difference between revisions

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(formerly Perl 6)
(formerly Perl 6)


In Perl 6, all numeric types have a method called <tt>narrow</tt>, which returns an object with the same value but of the most appropriate type. So we can just check if ''that'' object is an <tt>Int</tt>. This works even with floats with large exponents, because the <tt>Int</tt> type supports arbitrarily large integers.
In Raku, all numeric types have a method called <tt>narrow</tt>, which returns an object with the same value but of the most appropriate type. So we can just check if ''that'' object is an <tt>Int</tt>. This works even with floats with large exponents, because the <tt>Int</tt> type supports arbitrarily large integers.


For the extra credit task, we can add another multi candidate that checks the distance between the number and it's nearest integer, but then we'll have to handle complex numbers specially.
For the extra credit task, we can add another multi candidate that checks the distance between the number and it's nearest integer, but then we'll have to handle complex numbers specially.
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