Re: Record of STRefs better than STRef to a Record?

12 Nov 2002


      G'day all.

On Wed, Nov 13, 2002 at 04:05:42AM +0000, Jorge Adriano wrote:
...
If I use an STRef to a record, will a new record be created each time I want 
to update a single field?
Basically, yes.
...
Right now I'm using a record of STRefs, like:
data E s = E{
      refi ::  STRef s Int,
      refc ::  STRef s Char
    }
but it can get a little messy, since thread s propagates to every datatype 
that uses the record type in it's definition.
You could always use IORefs, if you don't mind having the IO monad
threaded through.

Cheers,
Andrew Bromage

Re: Record of STRefs better than STRef to a Record?

Andrew J Bromage