Jacques Garrigue <garrigue@kurims.kyoto-u.ac.jp> wrote:

>> From: "Vincent Barichard" <Vincent.Barichard@info.univ-angers.fr>
>> 
>> > I've just downloaded ocaml 3.07 and compil it. But when I try to compil old
>> > programs, I encounter some problems with optional arguments in methods.
>> [...]
>> > Is there any changes with the use of optional arguments for methods ?
>> 
>> I don't remember introducing any change at that level.
>
>After another bug report, it seems that a parsing bug went into camlp4
>just before the release :-(
>
>        Camlp4 Parsing version 3.07
>
># fun (f : ?x:int -> bool -> float) -> f true;;
>This expression has type bool but is here used with type ?x:int -> bool
># fun (f : ?x:int -> bool -> float) -> f;;
>- : ((?x:int -> bool) -> float) -> (?x:int -> bool) -> float = <fun>
>
>This is apparently a priority problem.
>A workaround is to explicitly add parentheses.
>
># fun (f : ?x:int -> (bool -> float)) -> f true;;
>- : (?x:int -> bool -> float) -> float = <fun>
>
>There is no fix for camlp4 itself yet.
>
>      Jacques Garrigue
>

Hi,

Is there a patch planned soon to solve this issue?

Best regards

-- 
Arturo Borquez


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