fold: ?
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hi lukas
I thought that we introduced the equivalent when we were pair programming at my place. fold: got introduced in squeak and may be your implementation/API should be pushed there? Stef _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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See <http://code.google.com/p/pharo/issues/detail?id=2401>. Looks like
it never got merged though. Lukas On 21 July 2010 18:20, Stéphane Ducasse <[hidden email]> wrote: > hi lukas > > I thought that we introduced the equivalent when we were pair programming at my place. > fold: got introduced in squeak and may be your implementation/API should be pushed there? > Stef > > _______________________________________________ > Pharo-project mailing list > [hidden email] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > -- Lukas Renggli www.lukas-renggli.ch _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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Ahh, it is called #reduce:, #reduceLeft: and #reduceRight: in Pharo.
Lukas On 21 July 2010 18:27, Lukas Renggli <[hidden email]> wrote: > See <http://code.google.com/p/pharo/issues/detail?id=2401>. Looks like > it never got merged though. > > Lukas > > On 21 July 2010 18:20, Stéphane Ducasse <[hidden email]> wrote: >> hi lukas >> >> I thought that we introduced the equivalent when we were pair programming at my place. >> fold: got introduced in squeak and may be your implementation/API should be pushed there? >> Stef >> >> _______________________________________________ >> Pharo-project mailing list >> [hidden email] >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> > > > > -- > Lukas Renggli > www.lukas-renggli.ch > -- Lukas Renggli www.lukas-renggli.ch _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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Now I remember: We called it #reduce: because this is much more common
among programming languages. The implementation in Pharo is much more general than the one of Squeak. Pharo behaves the same as Squeak for two argument blocks on SequenceableCollection. Squeak does not support anything else. Lukas On 21 July 2010 18:32, Lukas Renggli <[hidden email]> wrote: > Ahh, it is called #reduce:, #reduceLeft: and #reduceRight: in Pharo. > > Lukas > > On 21 July 2010 18:27, Lukas Renggli <[hidden email]> wrote: >> See <http://code.google.com/p/pharo/issues/detail?id=2401>. Looks like >> it never got merged though. >> >> Lukas >> >> On 21 July 2010 18:20, Stéphane Ducasse <[hidden email]> wrote: >>> hi lukas >>> >>> I thought that we introduced the equivalent when we were pair programming at my place. >>> fold: got introduced in squeak and may be your implementation/API should be pushed there? >>> Stef >>> >>> _______________________________________________ >>> Pharo-project mailing list >>> [hidden email] >>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >>> >> >> >> >> -- >> Lukas Renggli >> www.lukas-renggli.ch >> > > > > -- > Lukas Renggli > www.lukas-renggli.ch > -- Lukas Renggli www.lukas-renggli.ch _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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On Jul 21, 2010, at 6:35 PM, Lukas Renggli wrote: > Now I remember: We called it #reduce: because this is much more common > among programming languages. I could not put a name on it too :) > > The implementation in Pharo is much more general than the one of > Squeak. Pharo behaves the same as Squeak for two argument blocks on > SequenceableCollection. Squeak does not support anything else. > > Lukas > > On 21 July 2010 18:32, Lukas Renggli <[hidden email]> wrote: >> Ahh, it is called #reduce:, #reduceLeft: and #reduceRight: in Pharo. >> >> Lukas >> >> On 21 July 2010 18:27, Lukas Renggli <[hidden email]> wrote: >>> See <http://code.google.com/p/pharo/issues/detail?id=2401>. Looks like >>> it never got merged though. >>> >>> Lukas >>> >>> On 21 July 2010 18:20, Stéphane Ducasse <[hidden email]> wrote: >>>> hi lukas >>>> >>>> I thought that we introduced the equivalent when we were pair programming at my place. >>>> fold: got introduced in squeak and may be your implementation/API should be pushed there? >>>> Stef >>>> >>>> _______________________________________________ >>>> Pharo-project mailing list >>>> [hidden email] >>>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >>>> >>> >>> >>> >>> -- >>> Lukas Renggli >>> www.lukas-renggli.ch >>> >> >> >> >> -- >> Lukas Renggli >> www.lukas-renggli.ch >> > > > > -- > Lukas Renggli > www.lukas-renggli.ch > > _______________________________________________ > Pharo-project mailing list > [hidden email] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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In reply to this post by Lukas Renggli
On Wed, 21 Jul 2010, Lukas Renggli wrote:
> Now I remember: We called it #reduce: because this is much more common > among programming languages. Really? http://en.wikipedia.org/wiki/Fold_(higher-order_function) Levente > > The implementation in Pharo is much more general than the one of > Squeak. Pharo behaves the same as Squeak for two argument blocks on > SequenceableCollection. Squeak does not support anything else. > > Lukas > > On 21 July 2010 18:32, Lukas Renggli <[hidden email]> wrote: >> Ahh, it is called #reduce:, #reduceLeft: and #reduceRight: in Pharo. >> >> Lukas >> >> On 21 July 2010 18:27, Lukas Renggli <[hidden email]> wrote: >>> See <http://code.google.com/p/pharo/issues/detail?id=2401>. Looks like >>> it never got merged though. >>> >>> Lukas >>> >>> On 21 July 2010 18:20, Stéphane Ducasse <[hidden email]> wrote: >>>> hi lukas >>>> >>>> I thought that we introduced the equivalent when we were pair programming at my place. >>>> fold: got introduced in squeak and may be your implementation/API should be pushed there? >>>> Stef >>>> >>>> _______________________________________________ >>>> Pharo-project mailing list >>>> [hidden email] >>>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >>>> >>> >>> >>> >>> -- >>> Lukas Renggli >>> www.lukas-renggli.ch >>> >> >> >> >> -- >> Lukas Renggli >> www.lukas-renggli.ch >> > > > > -- > Lukas Renggli > www.lukas-renggli.ch > > _______________________________________________ > Pharo-project mailing list > [hidden email] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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We will not argue on that one!
Stef On Jul 21, 2010, at 6:55 PM, Levente Uzonyi wrote: > On Wed, 21 Jul 2010, Lukas Renggli wrote: > >> Now I remember: We called it #reduce: because this is much more common >> among programming languages. > > Really? http://en.wikipedia.org/wiki/Fold_(higher-order_function) > > > Levente > >> >> The implementation in Pharo is much more general than the one of >> Squeak. Pharo behaves the same as Squeak for two argument blocks on >> SequenceableCollection. Squeak does not support anything else. >> >> Lukas >> >> On 21 July 2010 18:32, Lukas Renggli <[hidden email]> wrote: >>> Ahh, it is called #reduce:, #reduceLeft: and #reduceRight: in Pharo. >>> >>> Lukas >>> >>> On 21 July 2010 18:27, Lukas Renggli <[hidden email]> wrote: >>>> See <http://code.google.com/p/pharo/issues/detail?id=2401>. Looks like >>>> it never got merged though. >>>> >>>> Lukas >>>> >>>> On 21 July 2010 18:20, Stéphane Ducasse <[hidden email]> wrote: >>>>> hi lukas >>>>> >>>>> I thought that we introduced the equivalent when we were pair programming at my place. >>>>> fold: got introduced in squeak and may be your implementation/API should be pushed there? >>>>> Stef >>>>> >>>>> _______________________________________________ >>>>> Pharo-project mailing list >>>>> [hidden email] >>>>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >>>>> >>>> >>>> >>>> >>>> -- >>>> Lukas Renggli >>>> www.lukas-renggli.ch >>>> >>> >>> >>> >>> -- >>> Lukas Renggli >>> www.lukas-renggli.ch >>> >> >> >> >> -- >> Lukas Renggli >> www.lukas-renggli.ch >> >> _______________________________________________ >> Pharo-project mailing list >> [hidden email] >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > _______________________________________________ > Pharo-project mailing list > [hidden email] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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In reply to this post by Levente Uzonyi-2
>> Now I remember: We called it #reduce: because this is much more common
>> among programming languages. > > Really? http://en.wikipedia.org/wiki/Fold_(higher-order_function) Yes, reduce is typically used without initial value, while fold is used with initial value (we already have inject:into: for that). Lukas > > > Levente > >> >> The implementation in Pharo is much more general than the one of >> Squeak. Pharo behaves the same as Squeak for two argument blocks on >> SequenceableCollection. Squeak does not support anything else. >> >> Lukas >> >> On 21 July 2010 18:32, Lukas Renggli <[hidden email]> wrote: >>> >>> Ahh, it is called #reduce:, #reduceLeft: and #reduceRight: in Pharo. >>> >>> Lukas >>> >>> On 21 July 2010 18:27, Lukas Renggli <[hidden email]> wrote: >>>> >>>> See <http://code.google.com/p/pharo/issues/detail?id=2401>. Looks like >>>> it never got merged though. >>>> >>>> Lukas >>>> >>>> On 21 July 2010 18:20, Stéphane Ducasse <[hidden email]> >>>> wrote: >>>>> >>>>> hi lukas >>>>> >>>>> I thought that we introduced the equivalent when we were pair >>>>> programming at my place. >>>>> fold: got introduced in squeak and may be your implementation/API >>>>> should be pushed there? >>>>> Stef >>>>> >>>>> _______________________________________________ >>>>> Pharo-project mailing list >>>>> [hidden email] >>>>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >>>>> >>>> >>>> >>>> >>>> -- >>>> Lukas Renggli >>>> www.lukas-renggli.ch >>>> >>> >>> >>> >>> -- >>> Lukas Renggli >>> www.lukas-renggli.ch >>> >> >> >> >> -- >> Lukas Renggli >> www.lukas-renggli.ch >> >> _______________________________________________ >> Pharo-project mailing list >> [hidden email] >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > _______________________________________________ > Pharo-project mailing list > [hidden email] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > -- Lukas Renggli www.lukas-renggli.ch _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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I like this point so we can include fold: then.
Stef On Jul 21, 2010, at 7:15 PM, Lukas Renggli wrote: >>> Now I remember: We called it #reduce: because this is much more common >>> among programming languages. >> >> Really? http://en.wikipedia.org/wiki/Fold_(higher-order_function) > > Yes, reduce is typically used without initial value, while fold is > used with initial value (we already have inject:into: for that). > > Lukas > >> >> >> Levente >> >>> >>> The implementation in Pharo is much more general than the one of >>> Squeak. Pharo behaves the same as Squeak for two argument blocks on >>> SequenceableCollection. Squeak does not support anything else. >>> >>> Lukas >>> >>> On 21 July 2010 18:32, Lukas Renggli <[hidden email]> wrote: >>>> >>>> Ahh, it is called #reduce:, #reduceLeft: and #reduceRight: in Pharo. >>>> >>>> Lukas >>>> >>>> On 21 July 2010 18:27, Lukas Renggli <[hidden email]> wrote: >>>>> >>>>> See <http://code.google.com/p/pharo/issues/detail?id=2401>. Looks like >>>>> it never got merged though. >>>>> >>>>> Lukas >>>>> >>>>> On 21 July 2010 18:20, Stéphane Ducasse <[hidden email]> >>>>> wrote: >>>>>> >>>>>> hi lukas >>>>>> >>>>>> I thought that we introduced the equivalent when we were pair >>>>>> programming at my place. >>>>>> fold: got introduced in squeak and may be your implementation/API >>>>>> should be pushed there? >>>>>> Stef >>>>>> >>>>>> _______________________________________________ >>>>>> Pharo-project mailing list >>>>>> [hidden email] >>>>>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Lukas Renggli >>>>> www.lukas-renggli.ch >>>>> >>>> >>>> >>>> >>>> -- >>>> Lukas Renggli >>>> www.lukas-renggli.ch >>>> >>> >>> >>> >>> -- >>> Lukas Renggli >>> www.lukas-renggli.ch >>> >>> _______________________________________________ >>> Pharo-project mailing list >>> [hidden email] >>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> >> _______________________________________________ >> Pharo-project mailing list >> [hidden email] >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> > > > > -- > Lukas Renggli > www.lukas-renggli.ch > > _______________________________________________ > Pharo-project mailing list > [hidden email] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project _______________________________________________ Pharo-project mailing list [hidden email] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project |
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In reply to this post by Lukas Renggli
On 21.07.2010, at 18:27, Lukas Renggli wrote: The test case for it is a really really nice one. Remembers what is different in smalltalk and smalltalk developers: array := Array with: Color red with: Color green with: Color blue. self assert: (array reduce:[:a :b| a + b]) = Color white. I like this so much. thanks, Norbert
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