mirror of
https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
Yukihiro "Matz" Matsumoto
32 lines
750 B
Ruby
32 lines
750 B
Ruby
module Comparable
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##
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# Returns <i>min</i> if <i>obj</i> <code><=></code> <i>min</i> is less
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# than zero, <i>max</i> if <i>obj</i> <code><=></code> <i>max</i> is
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# greater than zero and <i>obj</i> otherwise.
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#
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# 12.clamp(0, 100) #=> 12
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# 523.clamp(0, 100) #=> 100
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# -3.123.clamp(0, 100) #=> 0
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#
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# 'd'.clamp('a', 'f') #=> 'd'
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# 'z'.clamp('a', 'f') #=> 'f'
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#
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def clamp(min, max)
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if (min <=> max) > 0
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raise ArgumentError, "min argument must be smaller than max argument"
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end
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c = self <=> min
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if c == 0
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return self
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elsif c < 0
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return min
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end
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c = self <=> max
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if c > 0
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return max
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else
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return self
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end
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end
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end
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