golang struct 和 byte互转
发布时间:2020-12-16 09:34:04 所属栏目:大数据 来源:网络整理
导读:相比于encoding,使用unsafe性能更高 type MyStruct struct { A int B int } var sizeOfMyStruct = int ( unsafe .Sizeof(MyStruct{}))func MyStructToBytes(s *MyStruct) [] byte { var x reflect.SliceHeader x.Len = sizeOfMyStruct x.Cap = sizeOfMyStruc
相比于encoding,使用unsafe性能更高 type MyStruct struct { A int B int } var sizeOfMyStruct = int(unsafe.Sizeof(MyStruct{})) func MyStructToBytes(s *MyStruct) []byte { var x reflect.SliceHeader x.Len = sizeOfMyStruct x.Cap = sizeOfMyStruct x.Data = uintptr(unsafe.Pointer(s)) return *(*[]byte)(unsafe.Pointer(&x)) } func BytesToMyStruct(b []byte) *MyStruct { return (*MyStruct)(unsafe.Pointer( (*reflect.SliceHeader)(unsafe.Pointer(&b)).Data,)) } (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |