itdoxy-lab/modules/util/compare.go

59 lines
1.4 KiB
Go

// Copyright 2017 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package util
import "sort"
// Int64Slice attaches the methods of Interface to []int64, sorting in increasing order.
type Int64Slice []int64
func (p Int64Slice) Len() int { return len(p) }
func (p Int64Slice) Less(i, j int) bool { return p[i] < p[j] }
func (p Int64Slice) Swap(i, j int) { p[i], p[j] = p[j], p[i] }
// IsSliceInt64Eq returns if the two slice has the same elements but different sequences.
func IsSliceInt64Eq(a, b []int64) bool {
if len(a) != len(b) {
return false
}
sort.Sort(Int64Slice(a))
sort.Sort(Int64Slice(b))
for i := 0; i < len(a); i++ {
if a[i] != b[i] {
return false
}
}
return true
}
// ExistsInSlice returns true if string exists in slice.
func ExistsInSlice(target string, slice []string) bool {
i := sort.Search(len(slice),
func(i int) bool { return slice[i] == target })
return i < len(slice)
}
// IsEqualSlice returns true if slices are equal.
func IsEqualSlice(target []string, source []string) bool {
if len(target) != len(source) {
return false
}
if (target == nil) != (source == nil) {
return false
}
sort.Strings(target)
sort.Strings(source)
for i, v := range target {
if v != source[i] {
return false
}
}
return true
}