class Numeric
Public Instance Methods
clamp(lower, higher=nil)
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Clamps num so that lower <= new_num <= higher.
Returns lower when num < lower, higher when num > higher, otherwise num itself.
Raises an exception if lower > higher
# File lib/mug/clamp.rb, line 12 def clamp lower, higher=nil return lower.bound(self) if lower.is_a?(Range) && higher.nil? raise ArgumentError, 'range must not be negative' if lower > higher [[lower, self].max, higher].min end
negative?()
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# File lib/mug/negativity.rb, line 5 def negative? self < 0 ? self : nil end
nonnegative?()
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# File lib/mug/negativity.rb, line 14 def nonnegative? self < 0 ? nil : self end
nonpositive?()
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# File lib/mug/negativity.rb, line 18 def nonpositive? self > 0 ? nil : self end
positive?()
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# File lib/mug/negativity.rb, line 9 def positive? self > 0 ? self : nil end
to_b()
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Converts num to a boolean. Returns true if not zero.
# File lib/mug/bool.rb, line 35 def to_b !self.zero? end