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digitalmars.D - Functional language in D

reply vanh <vanh dslextreme.com> writes:
I'm just wondering how much of functional language is in D?
And how useful it would bring if it is added into D?

vtp
Feb 27 2007
parent reply Bill Baxter <dnewsgroup billbaxter.com> writes:
vanh wrote:

 
 I'm just wondering how much of functional language is in D?
 And how useful it would bring if it is added into D?
 
 vtp


It has proper tail recursion.  That makes a lot of functional techniques 
feasible, at least in principle.

But there's not much in the way of generic functional algorithms in the 
core.  Map, reduce, apply, etc, aren't in the std library.

foreach is in the core, though.  That's kind of a functional thing. 
What are you looking for exactly?  Something like Boost::lambda or more 
like ML?  The former is becoming more and more doable, the latter 
probably won't happen.


--bb
Feb 27 2007
parent reply vanh <vanh dslextreme.com> writes:
Bill Baxter wrote:

 vanh wrote:

 I'm just wondering how much of functional language is in D?
 And how useful it would bring if it is added into D?

 vtp


 
 It has proper tail recursion.  That makes a lot of functional techniques 
 feasible, at least in principle.
 
 But there's not much in the way of generic functional algorithms in the 
 core.  Map, reduce, apply, etc, aren't in the std library.
 
 foreach is in the core, though.  That's kind of a functional thing. What 
 are you looking for exactly?  Something like Boost::lambda or more like 
 ML?  The former is becoming more and more doable, the latter probably 
 won't happen.
 
 
 --bb


Boost::lambda  like is what I'm looking for.

vtp
Feb 28 2007
next sibling parent Daniel Keep <daniel.keep.lists gmail.com> writes:
vanh wrote:

 Bill Baxter wrote:

 vanh wrote:

 I'm just wondering how much of functional language is in D?
 And how useful it would bring if it is added into D?

 vtp


 It has proper tail recursion.  That makes a lot of functional
 techniques feasible, at least in principle.

 But there's not much in the way of generic functional algorithms in
 the core.  Map, reduce, apply, etc, aren't in the std library.

 foreach is in the core, though.  That's kind of a functional thing.
 What are you looking for exactly?  Something like Boost::lambda or
 more like ML?  The former is becoming more and more doable, the latter
 probably won't happen.


 --bb


 
 Boost::lambda  like is what I'm looking for.
 
 vtp


We're pretty close... got the 'bind' bit down:
http://www.digitalmars.com/d/phobos/std_bind.html

And here I was thinking I'd get to pimp my functools module :P

	-- Daniel

-- 
Unlike Knuth, I have neither proven or tried the above; it may not even
make sense.

v2sw5+8Yhw5ln4+5pr6OFPma8u6+7Lw4Tm6+7l6+7D
i28a2Xs3MSr2e4/6+7t4TNSMb6HTOp5en5g6RAHCP  http://hackerkey.com/
Feb 28 2007
prev sibling parent reply Bill Baxter <dnewsgroup billbaxter.com> writes:
vanh wrote:

 Bill Baxter wrote:

 vanh wrote:

 I'm just wondering how much of functional language is in D?
 And how useful it would bring if it is added into D?

 vtp


 It has proper tail recursion.  That makes a lot of functional 
 techniques feasible, at least in principle.

 But there's not much in the way of generic functional algorithms in 
 the core.  Map, reduce, apply, etc, aren't in the std library.

 foreach is in the core, though.  That's kind of a functional thing. 
 What are you looking for exactly?  Something like Boost::lambda or 
 more like ML?  The former is becoming more and more doable, the latter 
 probably won't happen.


 --bb


 
 Boost::lambda  like is what I'm looking for.


I guess you saw this from a few minutes ago?
    http://www.prowiki.org/wiki4d/wiki.cgi?DanielKeep/functools

(reposting Daniel's link because he posted it to a different thread, 
though with the same subject line.)

--bb
Feb 28 2007
parent vanh <vanh dslextreme.com> writes:
Bill Baxter wrote:

 vanh wrote:

 Bill Baxter wrote:

 vanh wrote:

 I'm just wondering how much of functional language is in D?
 And how useful it would bring if it is added into D?

 vtp


 It has proper tail recursion.  That makes a lot of functional 
 techniques feasible, at least in principle.

 But there's not much in the way of generic functional algorithms in 
 the core.  Map, reduce, apply, etc, aren't in the std library.

 foreach is in the core, though.  That's kind of a functional thing. 
 What are you looking for exactly?  Something like Boost::lambda or 
 more like ML?  The former is becoming more and more doable, the 
 latter probably won't happen.


 --bb


 Boost::lambda  like is what I'm looking for.


 
 I guess you saw this from a few minutes ago?
    http://www.prowiki.org/wiki4d/wiki.cgi?DanielKeep/functools
 
 (reposting Daniel's link because he posted it to a different thread, 
 though with the same subject line.)
 
 --bb


Cool thank guys.

vtp
Mar 01 2007