Sujet : Re: Lisp history: IF, etc.
De : alan (at) *nospam* csail.mit.edu (Alan Bawden)
Groupes : comp.lang.lispDate : 04. Apr 2024, 04:29:50
Autres entêtes
Organisation : ITS Preservation Society
Message-ID : <86v84xoo69.fsf@williamsburg.bawden.org>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
User-Agent : Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux)
Lawrence D'Oliveiro <
ldo@nz.invalid> writes:
On Wed, 03 Apr 2024 14:15:14 -0400, Alan Bawden wrote:
> Other programming languages at the time (e.g. FORTRAN and ALGOL) only
> had conditional statements.
Algol60 had if-expressions, e.g.
a := if b then c else d
Ah yes, the history is slightly more complicated than I remembered.
Algol 58 did not have conditional expressions. But McCarthy then joined
the Algol committee and he suggested that they add conditional
expressions. And so they do appear in Algol 60.
- Alan
| Date | Sujet | # | | Auteur |
| 2 Apr 24 |  Lisp history: IF, etc. | 56 | | Alan Bawden |
| 2 Apr 24 |   Re: Lisp history: IF, etc. | 1 | | Kaz Kylheku |
| 3 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Gijs Hillenius |
| 3 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Gijs Hillenius |
| 3 Apr 24 | Re: Lisp history: IF, etc. | 49 | | Madhu |
| 3 Apr 24 |   Re: Lisp history: IF, etc. | 48 | | Alan Bawden |
| 3 Apr 24 |  Re: Lisp history: IF, etc. | 35 | | Paul Rubin |
| 3 Apr 24 | Re: Lisp history: IF, etc. | 34 | | Alan Bawden |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 32 | | Paul Rubin |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 5 | | Lawrence D'Oliveiro |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 3 | | Axel Reichert |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Lawrence D'Oliveiro |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Paul Rubin |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Kaz Kylheku |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 26 | | Alan Bawden |
| 5 Apr 24 | Re: Lisp history: IF, etc. | 25 | | Paul Rubin |
| 5 Apr 24 | Re: Lisp history: IF, etc. | 24 | | Julieta Shem |
| 5 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Julieta Shem |
| 6 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Lawrence D'Oliveiro |
| 15 Apr 24 | Re: Lisp history: IF, etc. | 21 | | Paul Rubin |
| 16 Apr 24 | Re: Lisp history: IF, etc. | 20 | | Jeff Barnett |
| 16 Apr 24 | Re: Lisp history: IF, etc. | 2 | | Lawrence D'Oliveiro |
| 16 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Jeff Barnett |
| 16 Apr 24 | Re: Lisp history: IF, etc. | 16 | | Paul Rubin |
| 16 Apr 24 | Re: Lisp history: IF, etc. | 15 | | Jeff Barnett |
| 16 Apr 24 | Re: Lisp history: IF, etc. | 14 | | Lawrence D'Oliveiro |
| 16 Apr 24 | Re: Lisp history: IF, etc. | 12 | | Paul Rubin |
| 17 Apr 24 | Re: Lisp history: IF, etc. | 11 | | Lawrence D'Oliveiro |
| 17 Apr 24 | Re: Lisp history: IF, etc. | 10 | | Paul Rubin |
| 17 Apr 24 | Re: Lisp history: IF, etc. | 9 | | Jeff Barnett |
| 17 Apr 24 | Re: Lisp history: IF, etc. | 8 | | Lawrence D'Oliveiro |
| 17 Apr 24 | Re: Lisp history: IF, etc. | 7 | | Paul Rubin |
| 17 Apr 24 | Re: Lisp history: IF, etc. | 3 | | Madhu |
| 18 Apr 24 | Re: Lisp history: IF, etc. | 2 | | Lawrence D'Oliveiro |
| 18 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Paul Rubin |
| 17 Apr 24 | Re: Lisp history: IF, etc. | 3 | | Ben Bacarisse |
| 18 Apr 24 | Re: Lisp history: IF, etc. | 2 | | Lawrence D'Oliveiro |
| 18 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Stefan Monnier |
| 17 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Jeff Barnett |
| 17 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Stefan Ram |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Ben Bacarisse |
| 3 Apr 24 | Re: Lisp history: IF, etc. | 7 | | Kaz Kylheku |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 5 | | Alan Bawden |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 3 | | Kaz Kylheku |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 2 | | Kaz Kylheku |
| 4 Apr 24 | on levels of disappointment (Was: Re: Lisp history: IF, etc.) | 1 | | Julieta Shem |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Julieta Shem |
| 5 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Spiros Bousbouras |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 3 | | Lawrence D'Oliveiro |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 2 | | Alan Bawden |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Kaz Kylheku |
| 12 Apr 24 | Re: Lisp history: IF, etc. | 2 | | Alan Bawden |
| 12 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Lawrence D'Oliveiro |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 3 | | Kaz Kylheku |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 2 | | Alan Bawden |
| 4 Apr 24 | Re: Lisp history: IF, etc. | 1 | | Lawrence D'Oliveiro |