delegates & GC allocations

[Dicebot via Digitalmars-d-learn]

On Wednesday, 20 August 2014 at 14:54:31 UTC, ketmar via 
Digitalmars-d-learn wrote:
> On Wed, 20 Aug 2014 10:44:38 -0400
> Etienne via Digitalmars-d-learn 
> <digitalmars-d-learn at puremagic.com>
> wrote:
>
> and this is not delegate, this is just nested function.

non-static nested functions are effectively delegates as it needs 
a context pointer to parent stack frame. However, not every 
delegate is a closure - heap allocation of the context happens 
only if delegate leaves the scope it refers to (via return value 
or by being passed as an argument to external function)