2024-10-21 23:56:58 +09:00
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class Magnitude: Object {
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##fun < (oprnd) { self subclassResponsibility: #< }
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fun < (oprnd) { return (self:subclassResponsibility #<) }
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fun > (oprnd) { return (oprnd < self) }
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fun <= (oprnd) { return ((oprnd < self):not) }
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fun >= (oprnd) { return ((self < oprnd):not) }
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}
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2025-09-17 22:51:43 +09:00
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class[#limited] Number: Magnitude {
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2024-10-21 23:56:58 +09:00
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fun + (oprnd) { return (+ self oprnd) }
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fun - (oprnd) { return (- self oprnd) }
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fun * (oprnd) { return (* self oprnd) }
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fun / (oprnd) { return (/ self oprnd) }
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##fun > (oprnd) { return (> self oprnd) }
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##fun < (oprnd) { return (< self oprnd) }
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##fun >= (oprnd) { return (>= self oprnd) }
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##fun <= (oprnd) { return (<= self oprnd) }
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}
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