[m-users.] spawn in Rosettacode

Julien Fischer jfischer at opturion.com
Sat Aug 30 17:39:46 AEST 2014

Hi Robert,

On Sat, 30 Aug 2014, Robert Smart wrote:

> I don't see print_cc/1.

It's in the io module; listed just after io.print.

> I assumed that print_cc("Rosetta\n") was a sort of partial application
> and that spawn would complete that with the !IO parameters.

princ_cc("Rosetta\n") is just a normal curried higher-order term.
The intesting bit here is spawn/3.  The library manual's explanation is:

     spawn(Closure, IO0, IO) is true iff `IO0' denotes a list of I/O
     transactions that is an interleaving of those performed by
     `Closure' and those contained in `IO' - the list of transactions performed
     by the continuation of spawn/3.

> Somebody could add some of this explanation to the rosettacode example which is currently rather bare.

Ok, I'll do that.

> Also the info on how to compile it.

     $ mmc concurrent_computing.m

Since most grades support some form of concurrency that should be it.
(For those grades that don't a runtime error will occur.)


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