ocaml-lib-devel

[Ocaml-lib-devel] Std.input_list failing silently

[Peter J. <pe...@jo...>]

It appears that the Std.input_list function always returns [] when
called from native code:

$ cat > test.ml
let c = open_in "test.ml" in
let l = Std.input_list c in
print_int (List.length l);
close_in c

$ ocamlc -o ex extLib.cma test.ml && ./ex
4
$ ocamlopt -o ex extlib.cmxa test.ml && ./ex
0

This is with ExtLib 1.0b (with the Obj.set_field fix applied to std.ml)
and OCaml 3.07.

Re: [Ocaml-lib-devel] Std.input_list failing silently

[Nicolas C. <war...@fr...>]

> It appears that the Std.input_list function always returns [] when
> called from native code:

Thanks for the report !
It was a bug that is coming from the native code generator being too much
smart at optimizing list accesses. Looks like it's happening only when used
in conjonction with recursive loops. I fixed the implementation of
input_list ( as well as Enum.force which was using the same technique ).
Please update from the CVS.

Regards,
Nicolas Cannasse