31 lines
545 B
Go
31 lines
545 B
Go
package kcl
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import (
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"math/big"
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)
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// SequencePair a convience way to pass around a Sequence / SubSequence pair
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type SequencePair struct {
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Sequence *big.Int
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SubSequence int
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}
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func (s SequencePair) IsEmpty() bool {
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return s.Sequence == nil
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}
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func (s SequencePair) IsLessThan(pair SequencePair) bool {
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if s.IsEmpty() || pair.IsEmpty() { // empty pairs are incomparable
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return false
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}
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cmp := s.Sequence.Cmp(pair.Sequence)
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if cmp == -1 {
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return true
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}
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if cmp == 1 {
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return false
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}
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return s.SubSequence < pair.SubSequence
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}
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