Go Structs: Difference between revisions

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var ms myStruct
var ms myStruct
</pre>
</pre>
If no explicit initialization follows, all the struct's fields are initialized with their [[Go Concepts - The Type System#Zero_Value|zero value]].


==Short Variable Declaration==
==Short Variable Declaration==

Revision as of 02:06, 30 March 2016

Internal

Overview

A struct is a user-defined type that contains named fields.

Are all users can define (in terms of types) structs, or there are other user-defined types?

Definition

The struct type definition is introduced by the type keyword, to indicated that this is a user-defined type, followed by the type name and the keyword struct. Each field has a name and a type.

type myStruct struct {
    i int
    s string
}

Fields with the same types can be collapsed:

type myStruct struct {
    ...
    i, j, k int
   ...
}

Initialization

Long Variable Declaration

var ms myStruct

If no explicit initialization follows, all the struct's fields are initialized with their zero value.

Short Variable Declaration

new()

Literal:

Struct Literals

Fields

A field is always exported by the package it is enclosed in.