Module Tally :: Class TallyNum

Class TallyNum

A single "zero agnostic" number, as represented in khipu.

TallyNum is only used during 'slow' tally processing. To avoid breaking commutivity, each 'digit' can exceed 10; a separate step is required to 'reduce' the carries in order to perform comparisons with other TallyNum objects.

Instance Methods

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__init__(self, arg)
The lstval field is a little-endian list of 'digits', although carries are not performed so digits can be any positive integer.

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__repr__(self)

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__str__(self)

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__eq__(self, other)

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__ne__(self, other)

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__cmp__(self, other)

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__hash__(self)

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reduceCarry(self, limit=None)
Generator of ints representing carry-reduced values of this TallyNum.

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Method Details

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init(self, arg)
(Constructor)

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The lstval field is a little-endian list of 'digits', although carries are not performed so digits can be any positive integer. The least-significant 'digit' is lstval[0].

reduceCarry(self, limit=None)

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Generator of ints representing carry-reduced values of this TallyNum. If none of the 'digits' in this TallyNum are greater than nine, than this function generates a single int, which is the result of concatenating the reversed digits together. Otherwise, we iterate over the carry possibilities; for example: 1-10 generates both '110' and '20'.

Class TallyNum

__init__(self, arg) (Constructor)

reduceCarry(self, limit=None)

init(self, arg)
(Constructor)