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Date: Wed, 27 Apr 2016 11:36:06 +0200
From: =?utf-8?Q?Daniel_B=C3=BCnzli?= <daniel.buenzli@erratique.ch>
To: William <r.3@libertysurf.fr>
Cc: caml-list@inria.fr
Message-ID: <32C540F73D89478D9E6D2AF2599F639F@erratique.ch>
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Subject: Re: [Caml-list] ocaml 4.03 and warning 52 : argument of this
 constructor should not be matched against a constant pattern

Le mercredi, 27 avril 2016 =C3=A0 11:22, William a =C3=A9crit :
> How are we supposed to handle this nicely with the standard library ? Is
> there a better approach to catch those exceptions ?

Capture them immediately around the function call that raises with a _ patt=
ern.=20=20
For example:=20=20

match (try Some (List.hd lst) with Failure _ -> None) with
| None -> Printf.printf "empty list\n"
| Some hd -> =E2=80=A6

That's the way these functions should have been defined in the first place.

Best,=20=20

Daniel