Why does this simple program segfault?

[Bill Baxter]

Robert Fraser wrote:
> Bill Baxter Wrote:
> 
>> Isn't there something we can do about this?  I do this about once a day 
>> when in a heavy D using phase.  It bites newbies and not-so-newbies 
>> alike.  I almost think it should be made so that no initializer calls 
>> the default constructor, and if you really want it to be null then you 
>> should initialize with null:
>>
>>     Tester fun;  // creates a new Tester
>>     Tester nofun = null;  // doesn't create anything
> 
> But then I (coming from a Java background) would be bitten by it about once a day.
> 
> I think the best way is to make a compiler warning for every local variable that's used before it's explicitly assigned, a la Java (actually, it's an error in Java).

Assuming it applied only to classes in D, that seems like a good idea.

--bb