library: hash/{crc32, adler32}

_cmptest/crcdemo/crc.go

@@ -2,10 +2,27 @@ package main
 
 import (
 	"fmt"
+	"hash/adler32"
+	"hash/crc32"
 	"hash/crc64"
 )
 
-func main() {
+func crc64Demo() {
 	crc := crc64.MakeTable(crc64.ECMA)
 	fmt.Printf("%016x\n", crc64.Checksum([]byte("Hello world"), crc))
 }
+
+func crc32Demo() {
+	crc32q := crc32.MakeTable(crc32.IEEE)
+	fmt.Printf("%08x\n", crc32.Checksum([]byte("Hello world"), crc32q))
+}
+
+func adler32Demo() {
+	fmt.Printf("%08x\n", adler32.Checksum([]byte("Hello world")))
+}
+
+func main() {
+	adler32Demo()
+	crc32Demo()
+	crc64Demo()
+}