I extracted the confusing part alone, when appending to an array, the items
are different than the resultant array into a separate go program.

The Playground URL is: https://play.golang.org/p/BJM0H_rYNdb

If someone can explain the output I would be thankful. It feels like a bug
to me, but I am sure that I am only misunderstanding and it may not be a
bug.

Thanks.


2018-05-23 11:45 GMT+05:30 Sankar P <sankar.curios...@gmail.com>:

> Use an array instead of a slice. An array has a fixed size and can be used
>> as a key to a map
>>
>> https://play.golang.org/p/xxxmrwpx08A
>>
>
> This seem to not work. The arr is returning only duplicate elements in
> your playground url.
>
> For example:
>
>        var arr [][]int
> for mem := range m {
> fmt.Println("Appending: ", mem[:])
> arr = append(arr, mem[:])
> }
> fmt.Println("Final arr is:", arr)
>
> the output is:
>
> Appending:  [-1 0 1]
> Appending:  [-1 -1 2]
> Final arr is: [[-1 -1 2] [-1 -1 2]]
>
> I am not really able to understand why the above code works so. The
> "Appending" and the "Final arr" statements have different values.
>
> --
> Sankar P
> http://psankar.blogspot.com
>



-- 
Sankar P
http://psankar.blogspot.com

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