[go-nuts] Interface and pointer reciever on interface methods

On Monday, November 19, 2012 2:54:10 PM UTC-5, netbrain wrote:

Please take a look at the simplified example: http://play.golang.**
org/p/1eMJs_LyCE <http://play.golang.org/p/1eMJs_LyCE>

Using the interface as the type passed around in function calls, i loose
the value set in the Init function. My first thought was to set the
interface methods as pointer recievers. However then the compiler complains
that my struct C doesnt implement the interface.

How can this be resolved so the function T2 retains the value set in T1?

On Mon, Nov 19, 2012 at 11:59 AM, John Asmuth wrote:

var t T = &C{}

Otherwise you're just copying around the C whenever you do something with
it. If you use &C{}, you're copying around a pointer to the C, which allows
changes to the C to be reflected elsewhere.

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