golang_snappy/encode_other.go

// Copyright 2016 The Snappy-Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// +build !amd64 appengine !gc noasm

package snappy

// extendMatch returns the largest k such that k <= len(src) and that
// src[i:i+k-j] and src[j:k] have the same contents.
//
// It assumes that:
//	0 <= i && i < j && j <= len(src)
func extendMatch(src []byte, i, j int) int {
	for ; j < len(src) && src[i] == src[j]; i, j = i+1, j+1 {
	}
	return j
}