Empty Struct

July 9, 2024

Go Empty Struct # Introduction # An empty struct has zero memory allocation, same memory addresses for multiple instances, and stateless. Zero Memory Allocation # Empty structs do not occupy memory, making them useful for memory optimization: package main import ( "fmt" "unsafe" ) func main() { var e struct{} fmt.Println(unsafe.Sizeof(e)) // Output: 0 } Same Memory Addresses # Multiple empty structs share the same address: package main import "fmt" func main() { var e, e2 struct{} fmt. ...