dec_util.go

/*
 * XZ decompressor utility functions
 *
 * Author: Michael Cross <https://github.com/xi2>
 *
 * This file has been put into the public domain.
 * You can do whatever you want with this file.
 */

package xz

func getLE32(buf []byte) uint32 {
	return uint32(buf[0]) |
		uint32(buf[1])<<8 |
		uint32(buf[2])<<16 |
		uint32(buf[3])<<24
}

func getBE32(buf []byte) uint32 {
	return uint32(buf[0])<<24 |
		uint32(buf[1])<<16 |
		uint32(buf[2])<<8 |
		uint32(buf[3])
}

func putLE32(val uint32, buf []byte) {
	buf[0] = byte(val)
	buf[1] = byte(val >> 8)
	buf[2] = byte(val >> 16)
	buf[3] = byte(val >> 24)
	return
}

func putBE32(val uint32, buf []byte) {
	buf[0] = byte(val >> 24)
	buf[1] = byte(val >> 16)
	buf[2] = byte(val >> 8)
	buf[3] = byte(val)
	return
}

func putLE64(val uint64, buf []byte) {
	buf[0] = byte(val)
	buf[1] = byte(val >> 8)
	buf[2] = byte(val >> 16)
	buf[3] = byte(val >> 24)
	buf[4] = byte(val >> 32)
	buf[5] = byte(val >> 40)
	buf[6] = byte(val >> 48)
	buf[7] = byte(val >> 56)
	return
}