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Add KI64Pair(s)

pull/1842/head
Jae Kwon 7 years ago
parent
commit
f2a8e95248
1 changed files with 30 additions and 0 deletions
  1. +30
    -0
      common/kvpair.go

+ 30
- 0
common/kvpair.go View File

@ -5,6 +5,9 @@ import (
"sort"
)
//----------------------------------------
// KVPair
type KVPair struct {
Key Bytes
Value Bytes
@ -28,3 +31,30 @@ func (kvs KVPairs) Less(i, j int) bool {
}
func (kvs KVPairs) Swap(i, j int) { kvs[i], kvs[j] = kvs[j], kvs[i] }
func (kvs KVPairs) Sort() { sort.Sort(kvs) }
//----------------------------------------
// KI64Pair
type KI64Pair struct {
Key Bytes
Value int64
}
type KI64Pairs []KI64Pair
// Sorting
func (kvs KI64Pairs) Len() int { return len(kvs) }
func (kvs KI64Pairs) Less(i, j int) bool {
switch bytes.Compare(kvs[i].Key, kvs[j].Key) {
case -1:
return true
case 0:
return kvs[i].Value < kvs[j].Value
case 1:
return false
default:
panic("invalid comparison result")
}
}
func (kvs KI64Pairs) Swap(i, j int) { kvs[i], kvs[j] = kvs[j], kvs[i] }
func (kvs KI64Pairs) Sort() { sort.Sort(kvs) }

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