add free

README.md

@@ -14,7 +14,7 @@ Turn the result to its original coding form to decode.
 
 # Usage
 ## As package
-Just include it in your project.
+Just import it in your project.
 ## As lib
 Copy this repo to `$GOPATH/src`, then execute
 ```bash

conv.go

@@ -6,10 +6,12 @@ import (
 
 var format = unicode.UTF16(unicode.BigEndian, unicode.IgnoreBOM)
 
+// UTF16be2utf8 to display the result as string
 func UTF16be2utf8(b []byte) ([]byte, error) {
 	return format.NewDecoder().Bytes(b)
 }
 
+// UTF82utf16be to decode from string
 func UTF82utf16be(b []byte) ([]byte, error) {
 	return format.NewEncoder().Bytes(b)
 }

mem.go

@@ -0,0 +1,10 @@
+package base14
+
+// #include <stdlib.h>
+import "C"
+import "unsafe"
+
+// Free memory allocated by encode / decode
+func Free(b []byte) {
+	C.free(unsafe.Pointer(&b[0]))
+}