62 lines
934 B
Go
62 lines
934 B
Go
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build ignore
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// +build ignore
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package bytealg
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import _ "unsafe" // for go:linkname
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func Compare(a, b []byte) int {
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l := len(a)
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if len(b) < l {
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l = len(b)
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}
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if l == 0 || &a[0] == &b[0] {
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goto samebytes
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}
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for i := 0; i < l; i++ {
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c1, c2 := a[i], b[i]
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if c1 < c2 {
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return -1
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}
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if c1 > c2 {
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return +1
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}
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}
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samebytes:
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if len(a) < len(b) {
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return -1
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}
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if len(a) > len(b) {
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return +1
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}
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return 0
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}
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//go:linkname runtime_cmpstring runtime.cmpstring
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func runtime_cmpstring(a, b string) int {
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l := len(a)
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if len(b) < l {
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l = len(b)
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}
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for i := 0; i < l; i++ {
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c1, c2 := a[i], b[i]
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if c1 < c2 {
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return -1
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}
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if c1 > c2 {
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return +1
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}
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}
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if len(a) < len(b) {
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return -1
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}
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if len(a) > len(b) {
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return +1
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}
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return 0
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}
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