CODEWITHSUNDEEP
structgoslice
collinglass
collinglass

Reputation: 830

Golang - Slices in nested structs

I have a deeply nested struct which contains two slices, as seen below:

package main

import "fmt"

type bar struct {
    v1 []int
    v2 []int
}

type foo struct{ bar bar }
type tar struct{ foo foo }

func main() {
    f := &tar{foo: foo{bar: bar{v1: [2], v2: [3]}}}
    fmt.Printf("Hello, playground %s", f)
}

How do I initialize the two slices? Or how do I get this code working?

Here is the Golang Play for it: http://play.golang.org/p/zLutROI4YH.

Upvotes: 2

Views: 3002

Answers (2)

Kavu
Kavu

Reputation: 8394

It's possible with []int{1,2,3} notation, example (solves your problem):

&tar{foo: foo{bar: bar{v1: []int{2}, v2: []int{2}}}}

P.S. I strongly advise you to read The Go Programming Language Specification and FAQ section.

Upvotes: 7

tigrang
tigrang

Reputation: 6767

v1 and v2 are slices. The way you initialize those is with make([]int, YOUR_INITIAL_SIZE) instead of [2] and [3].

Upvotes: 1

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