What's wrong with D's templates?

[Walter Bright]

retard wrote:
> Thu, 24 Dec 2009 11:59:57 -0800, Walter Bright wrote:
> 
>> grauzone wrote:
>>> What will you do?
>> Because of casting, there cannot be a thread-local only gc.
>>
>> This does not make the gc inherently unusable. Java, for example, uses
>> only one shared gc. It must, because Java has no concept of thread
>> local.
> 
> TLS is provided via library add-on http://java.sun.com/javase/6/docs/api/
> java/lang/ThreadLocal.html

While Java can allocate thread local data, it has no *concept* of thread 
local data. Nothing at all prevents one from passing a reference to 
thread local data from one thread to another. Since nothing prevents 
this, it therefore cannot violate the Java memory model, and therefore 
must be supported by the gc.