22 lines
914 B
Ruby
22 lines
914 B
Ruby
# frozen_string_literal: true
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# License: AGPL-3.0-or-later WITH Web-Template-Output-Additional-Permission-3.0-or-later
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class Numeric
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# Works like Numeric#floor but uses an offset other than 1. Ex: 6.floor_for_delta(5) -> 5
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# @param [Integer] delta the integer offsets from zero to round down to
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# @return [Integer]
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def floor_for_delta(delta)
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raise ArgumentError, 'delta must be a positive integer' unless delta.is_a?(Integer) && delta > 0
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(self % delta).zero? ? self : ((to_i / delta)) * delta
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end
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# Works like Numeric#ceil but uses an offset other than 1. Ex: 6.floor_for_delta(5) -> 10
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# @param [Integer] delta the integer offsets from zero to round up to
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# @return [Integer]
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def ceil_for_delta(delta)
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raise ArgumentError, 'delta must be a positive integer' unless delta.is_a?(Integer) && delta > 0
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(self % delta).zero? ? self : ((floor.to_i / delta) + 1) * delta
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end
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end
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