init: v1.0.0

sm/sm9/endian.go

@@ -0,0 +1,51 @@
+package sm9
+
+import (
+	"encoding/binary"
+
+	"xdx.jelly/xgcl/sm"
+)
+
+type endian struct {
+	isBigEndian bool
+}
+
+func (e *endian) PutUint32(b []byte, v uint32) {
+	if e.isBigEndian {
+		binary.BigEndian.PutUint32(b, v)
+	} else {
+		binary.LittleEndian.PutUint32(b, v)
+	}
+}
+
+func (e *endian) Uint32(b []byte) uint32 {
+	if e.isBigEndian {
+		return binary.BigEndian.Uint32(b)
+	}
+
+	return binary.LittleEndian.Uint32(b)
+}
+
+var (
+	// Endian is the endian when marshal a int, default is big endian
+	Endian = endian{true}
+)
+
+// SetToBigEndian 将端序设置为大端序
+func SetToBigEndian() {
+	Endian.isBigEndian = true
+}
+
+// SetToLittleEndian 设置为小端序
+func SetToLittleEndian() {
+	Endian.isBigEndian = false
+}
+
+// SetToDefaultEndian 恢复默认端序-大端
+func SetToDefaultEndian() {
+	Endian.isBigEndian = true
+}
+
+func init() {
+	sm.RegisterCallBack(SetToBigEndian, SetToLittleEndian, SetToDefaultEndian)
+}