Re: cond clause does not allow definitions
lloda <[email protected]>
| Newsgroups | gmane.lisp.guile.user |
|---|---|
| Message-ID | <[email protected]> |
Fwiw Guile isn't 100% consistent about this, for example match forms don't allow definitions and maybe some other form that I don't recall atm. > On 22 May 2024, at 22:37, lloda <[email protected]> wrote: > > > This is probably http://git.savannah.gnu.org/gitweb/?p=guile.git;a=commitdiff;h=764e3614b8c13de604399572a67d071621e9ca21 <http://git.savannah.gnu.org/gitweb/?p=guile.git;a=commitdiff;h=764e3614b8c13de604399572a67d071621e9ca21> and the next commit that documents the change. It was after 3.0.9. > >> On 22 May 2024, at 22:33, Damien Mattei <[email protected] <mailto:[email protected]>> wrote: >> >> Bonjour, >> >> so it is with the version i currently use which is older than you: >> (base) mattei@mbp-touch-bar library-FunctProg % guile >> GNU Guile 3.0.8.99-f3ea8 >> Copyright (C) 1995-2022 Free Software Foundation, Inc. >> >> Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'. >> This program is free software, and you are welcome to redistribute it >> under certain conditions; type `,show c' for details. >> >> Enter `,help' for help. >> scheme@(guile-user)> (cond (#t (define x 7) x)) >> While compiling expression: >> Syntax error: >> unknown file:1:10: definition in expression context, where definitions are >> not allowed, in form (define x 7) >> >> thanks >> >> On Wed, May 22, 2024 at 10:07 PM Jeronimo Pellegrini <[email protected] <mailto:[email protected]>> >> wrote: >> >>> Hello! >>> >>> On 2024-05-22 16:26, Damien Mattei wrote: >>>> scheme@(guile-user)> (cond (#t (define x 7) x)) >>>> While compiling expression: >>>> Syntax error: >>>> unknown file:7:10: definition in expression context, where definitions >>>> are >>>> not allowed, in form (define x 7) >>> >>> I get no error here (Guile 3.0.9.164-e1690, compiled locally): >>> >>> scheme@(guile-user)> (cond (else (define x 7) x)) >>> $1 = 7 >>> scheme@(guile-user)> (cond (#t (define x 7) x)) >>> $2 = 7 >>> >>> A: (cond (#t (define x 7) x)) >>> B: (cond (else (define x 7) x)) >>> >>> | system | A | B | >>> |-------------|-------|-------| >>> | Bigloo | 7 | 7 | >>> | Biwa | 7 | 7 | >>> | Chez | error | 7 | >>> | Chibi | error | 7 | >>> | Chicken | 7 | 7 | >>> | Cyclone | 7 | 7 | >>> | Gambit | error | error | >>> | Gauche | 7 | 7 | >>> | Guile | 7 | 7 | >>> | Kawa | 7 | 7 | >>> | LIPS | 7 | error | >>> | Loko | error | error | >>> | MIT | error | 7 | >>> | Racket | 7 | 7 | >>> | Sagittarius | 7 | 7 | >>> | Scheme48 | error | 7 | >>> | Scheme 9 | error | 7 | >>> | SCM | 7 | 7 | >>> | STklos | 7 | 7 | >>> | Tinyscheme | 7 | 7 | >>> >>> * LIPS does not recognise the 'else' clause. >>> >>> J. >>> >