[m-rev.] For review: ensure proper initialisation of pretty_printer

[Peter Wang]

On 27 April 2010 11:50, Ralph Becket <rafe at csse.unimelb.edu.au> wrote:
> Peter, can you show me how to set up a mutable variable in Erlang
> under Mercury?

The following is the code generated for this declaration, with some
simplification:

  :- mutable(foo, int, 123, ground, [untrailed, attach_to_io_state]).


get_foo_1_p_0() ->
  'ML_erlang_global_server' ! {get_mutable, t__mutable_variable_foo, self()},
  receive
    {get_mutable_ack, Value} ->
      Value
  end.

set_foo_1_p_0(X) ->
  'ML_erlang_global_server' ! {set_mutable, t__mutable_variable_foo, X}.


! is the 'send' operator

'ML_erlang_global_server' is the name of the process holding a table of globals

get_mutable, set_mutable, t__mutable_variable_foo are just atoms
--------------------------------------------------------------------------
mercury-reviews mailing list
Post messages to:       mercury-reviews at csse.unimelb.edu.au
Administrative Queries: owner-mercury-reviews at csse.unimelb.edu.au
Subscriptions:          mercury-reviews-request at csse.unimelb.edu.au
--------------------------------------------------------------------------