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Re: [Coq-Club] Lists & Strings

From: "Satrajit Roy" <satrajit.roy AT gmail.com>
To: "St�phane Glondu" <steph AT glondu.net>
Cc: coq-club AT pauillac.inria.fr
Subject: Re: [Coq-Club] Lists & Strings
Date: Tue, 11 Nov 2008 11:38:53 -0500
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Thanks Stephane.

On Tue, Nov 11, 2008 at 11:20 AM, St�phane Glondu <steph AT glondu.net> wrote:

Satrajit Roy wrote:
> [...]

> Record y: Set := createY {
> y': string;
> y'': list x;
>
> y''': bool :=
> match (length y') return bool with
> | 0 => false
> | _ => true
> end;
>
> y'''' : bool :=
> match (length y'') return bool with
> | 0 => false
> | _ => true
> end
> }.
> [...]

Use List.length to get the length of y''. For the sake of clarity, I
recommend you to use String.length for y' as well.

Cheers,

--
St�phane Glondu

[Coq-Club] Re: Lists & Strings, Satrajit Roy
- Re: [Coq-Club] Lists & Strings, Stéphane Glondu
  - Re: [Coq-Club] Lists & Strings, Satrajit Roy