On Sun, Sep 4, 2011 at 11:22 AM, John Carr <[email protected]> wrote: > > I am working with a file format the contains 32 bit integers. > I need to use int32 on 32 bit systems. I would like to use plain > integers, unboxed and with native machine operations, on 64 bit > systems. > > Is there any way to convince ocamlopt to choose between int and > int32 representations _at compile time_? >
You may be able to use ideas/implementation from the Int63 module: http://people.redhat.com/~rjones/virt-df/html/Int63.html or http://www.janestreet.com/ocaml/janestreet-ocamldocs/core/Int63.html The Int63 module uses int internally on 64bit OCaml installations and Int64.t internally on 32bit OCaml installations. I am not familiar with the details but it may be adaptable to your needs. Hez -- Caml-list mailing list. Subscription management and archives: https://sympa-roc.inria.fr/wws/info/caml-list Beginner's list: http://groups.yahoo.com/group/ocaml_beginners Bug reports: http://caml.inria.fr/bin/caml-bugs
