[racket-dev] [plt] Push #25924: master branch updated

On 12/19/2012 07:37 PM, mflatt at racket-lang.org wrote:
> aa08a68 Matthew Flatt <mflatt at racket-lang.org> 2012-12-19 18:30
> :
> | add phantom byte strings
> |
> | A phantom byte string is a small object that the memory
> | manager treats as an arbitrary-sized object, where the
> | size is specified when the phantom byte string is created
> | or or when size is changed via `set-phantom-bytes!'.

Cool! I can use this to allow MPFR to manage the memory for limbs 
instead of playing crazy finalizer tricks. (I'll still need a finalizer, 
but it'll be straightforward instead of being a major head-scratcher.)

Neil ⊥