std.allocator ready for some abuse

[Andrei Alexandrescu]

On 10/24/13 2:38 PM, Namespace wrote:
> On Thursday, 24 October 2013 at 21:31:42 UTC, Namespace wrote:
>> Awesome! Will Appender get an option to use a suitable allocator?
>
> A dream of me, that will probably never come true, would be also
> something like this:
> ----
> with (Mallocator) {
>      int[] arr;
>      arr ~= 42; /// will use Mallocator.it.allocate internal
> }
> ----

Oddly enough this can be actually done.

with (setAllocator!Mallocator)
{
    ...
}

setAllcator returns an rvalue that changes the global allocator to the 
Mallocator in the constructor, and restores it to whatever it was in the 
destructor.


Andrei