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35 lines
526 B
Go
35 lines
526 B
Go
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package main
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type Set struct {
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_map map[interface{}]struct{}
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}
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func NewSet() *Set {
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set := &Set{}
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set._map = make(map[interface{}]struct{})
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return set
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}
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func (set *Set) Contains(value interface{}) bool {
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_, ok := set._map[value]
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return ok
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}
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func (set *Set) Insert(value interface{}) bool {
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if set.Contains(value) {
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return false
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}
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set._map[value] = struct{}{}
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return true
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}
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func (set *Set) Remove(value interface{}) bool {
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if !set.Contains(value) {
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return false
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}
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delete(set._map, value)
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return true
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}
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