Test integerness: Difference between revisions
Content added Content deleted
(→{{header|Ruby}}: Added testcases conform suggested improvements.) |
(→{{header|Ruby}}: renamed method _integer?_ (which actually exists on Numeric) to _to_int?_.) |
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| Line 1,310: | Line 1,310: | ||
<lang ruby> |
<lang ruby> |
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class Numeric |
class Numeric |
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def |
def to_i? |
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self == self.to_i rescue false |
self == self.to_i rescue false |
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end |
end |
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| Line 1,318: | Line 1,318: | ||
ar = [25.000000, 24.999999, 25.000100, -2.1e120, -5e-2, |
ar = [25.000000, 24.999999, 25.000100, -2.1e120, -5e-2, |
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Float::NAN, Float::INFINITY, |
Float::NAN, Float::INFINITY, |
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2r, 2.5r, |
2r, 2.5r, |
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2+0i, 2 |
2+0i, 2+0.0i, 5-5i] |
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ar.each{|num| puts "#{num} integer? #{num. |
ar.each{|num| puts "#{num} integer? #{num.to_i?}" } |
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</lang> |
</lang> |
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{{out}} |
{{out}} |
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