From: Andre Nathan <andre@digirati.com.br>
To: caml-list@inria.fr
Subject: Labeled arguments and polymorphic return types
Date: Sat, 11 Aug 2007 15:17:32 -0300 [thread overview]
Message-ID: <1186856252.6007.11.camel@homesick> (raw)
Hello
Consider the following definition:
# let f ~a = print_int a; raise Exit;;
val f : a:int -> 'a = <fun>
If I call f without using the argument label, I get the following
warning:
# f 1;;
Warning X: this argument will not be used by the function.
- : a:int -> 'a = <fun>
The call works if I use the label ("f ~a:1"), if I define f without a
label for its argument, or if I remove the "raise" statement (causing
the return value to be unit instead of 'a).
Why is this warning generated?
Thanks in advance,
Andre
next reply other threads:[~2007-08-11 18:18 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-11 18:17 Andre Nathan [this message]
2007-08-13 8:51 ` [Caml-list] " Jacques Garrigue
2007-08-13 15:53 ` Andre Nathan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1186856252.6007.11.camel@homesick \
--to=andre@digirati.com.br \
--cc=caml-list@inria.fr \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox