creating copy of variable

[Abiola Ibrahim]

I want to able to have a copy of struct variable where i can manipulate the copy and leave the original intact. 

This is currently how I go about it http://play.golang.org/p/fIuMu-dMiG. Is there a better way ?

Thanks.

[roger peppe]

http://play.golang.org/p/XK_S0iQSnE

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[Robert Carlsen]

I'm pretty sure that won't give you a full deep-copy if that is what you need (e.g. a slice of struct pointers won't have copies of the pointed-to-structs).

[Peter S]

As long as your struct only contains boolean, numeric, string, and array types (and nested structs of these types), you can just do "b := a", and manipulating b won't affect a. Otherwise you will need to implement some kind of deep copy, but AFAIK there is no generic solution for that.

I am assuming that in reality you want to manipulate more complicated data structures than struct { int }; it is easier for people in the group to provide more specific advice if you can share the actual data structure definition.

Peter

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[Abiola Ibrahim]

The struct contains int, int64, bool, string, [4][4]int and map[string][]int elements.

[Volker Dobler]

On 24 Sep., 16:23, Abiola Ibrahim <abiol...@gmail.com> wrote:
> The struct contains int, int64, bool, string, [4][4]int and
> map[string][]int elements.

You will need to "deep copy" the map manually.
You might want to provide a Copy() method on your
struct type which manually creates and populates
the map from the original.

Volker

[Abiola Ibrahim]

I was trying to run away from manually creating a Copy method but its good to know I have only the map element to bother about. Thanks.