Who's using structs nested in functions?

[Michel Fortin]

On 2009-10-22 10:07:15 -0400, Andrei Alexandrescu 
<SeeWebsiteForEmail at erdani.org> said:

> Refer to:
> 
> http://www.digitalmars.com/d/2.0/struct.html
> 
> and scroll down to the last section, "Nested Structs". A struct defined 
> inside a function has a hidden pointer to that function's stack frame 
> and therefore can use function's local variables.
> 
> Nested classes do a similar trick, but for those there's a bit of 
> motivation - you could create a nested class and use it as a sort of 
> closure by returning a base class or interface of it.
> 
> With nested structs, however, you can't do much. You can pass them to a 
> template, but I can't see some solid use cases there. My understanding 
> is that nested structs have been implemented for completeness and 
> consistency with nested classes.
> 
> Any good example of nested struct uses?

I tried implementing things using nested structs in my mfr.xml 
module[1] but, for some reasons I don't remember anymore (template 
issues?), I wasn't too successful and ended up creating anonymous scope 
classes. All this because of the lack of nested overloaded functions.

[1]: see: 
http://www.digitalmars.com/webnews/newsgroups.php?art_group=digitalmars.D&article_id=98861


-- 


Michel Fortin
michel.fortin at michelf.com
http://michelf.com/