Docs: Section on local variables

[bearophile]

Jonathan M Davis:

>> Local Variables
>> It is an error to use a local variable without first assigning 
>> it a value.
>>...
> There's no way that this is ever going to be the case. There 
> are cases where
> you can't use a variable's initial value. For example,
>
> T var;
> if(cond)
> {
>  //do a bunch of stuff
>  var = something;
> }
> else
>  vare = somethingElse;

I think "use a local variable" doesn't mean "assign it 
immediately", it means essentially "reading it before writing 
it". So that code is correct.


> This could done, but it's definitely _not_ a warning or error 
> right now. It's
> also not ever going to be an error AFAIK, so I'd definitely 
> vote to remove it from the docs.

I think in Go unused local variables are an error.
If you go here and you try to add "x := 1" inside the main you 
receive an error, not a warning:
http://golang.org/#
And I think today Go programmers survive well enough to such 
strictness.

Bye,
bearophile