tinytl-general — General discussions

[Tinytl-general] Hi Eugene

[dleffingwell <dle...@my...>]

salutations Eugene



http://futarisushi.pl/storm.php?capital=zpkvt149yv5s4h




dleffingwell

[Tinytl-general] Question about ttl::func and ttl::sig

[Denis N <dz...@gm...>]

Hello,

I'm trying to use the ttl signals.
But I'm having an issue with the function signature with an empty parameter
list.

Ex:

ex: ttl::sig::signal<void(void)> or
ttl::sig::signal<void()>

I get errors like
error C2091: function returns function

Do you know if the functions with no parameters are supported ?

Thanks, great library!
Denis

[Tinytl-general] FASD project: Online survey launched

[<ben...@id...>]

Dear Open Source developer

I am doing a research project on "Fun and Software Development" in which I kindly invite you to participate.
You will find the online survey under http://fasd.ethz.ch/qsf/. The questionnaire consists of 53 questions and you will need about 15 minutes to complete it.

With the FASD project (Fun and Software Development) we want to define the motivational significance of fun when software developers decide to engage in Open Source projects. What is special about our research project is that a similar survey is planned with software developers in commercial firms. This procedure allows the immediate comparison between the involved individuals and the conditions of production of these two development models. Thus we hope to obtain substantial new insights to the phenomenon of Open Source Development.


With many thanks for your participation,
Benno Luthiger


PS:
The results of the survey will be published under http://www.isu.unizh.ch/fuehrung/blprojects/FASD/.
We have set up the mailing list fa...@we... for this study. Please see http://fasd.ethz.ch/qsf/mailinglist_en.html for registration to this mailing list.

_______________________________________________________________________

Benno Luthiger
Swiss Federal Institute of Technology Zurich
8092 Zurich

Mail: benno.luthiger(at)id.ethz.ch
_______________________________________________________________________

[Tinytl-general] new release

[E. G. <egl...@ya...>]

TTL v1.1 released

New in this release is the tup namespace.
Its semantic is very close to boost::tuples.
The tup namespace contains following templates:
ttl::tup::tuple<>
ttl::tup::get<>
ttl::tup::length<>
ttl::tup::element<>

Usage:
ttl::tup::tuple<int, double> my_tuple;

my_tuple t(1, 2.3);
int n = ttl::tup:get<0>(t);
double x = ttl::tup:get<1>(t);
int l = ttl::tup::length<my_tuple>::value;
assert(l==2);

ttl::tup::element<N, Tuple>::type is the type of the 
Nth element in Tuple.


II. Bug Fixes

Fixed problems with 'const' modifiers in variant.
Now if variant is const, the const modifier is
propagated to the return types of the var::get<> function.

Eugene


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Re: [Tinytl-general] function

[E. G. <egl...@co...>]

Hi Dave,

boost::function doesn't support member functions directly.

You might want to consider several solutions to this problem.

1.
You could change the function signature to include the object pointer
something like this:

FUNC::function<void (myListener*, event& ev)>
cb(&myListener::member_event_callback);
cb(&listener, event);

Not very nice, because of the need to change the signature.

2.
A much better solution is to use boost::bind or std::bind1st

FUNC::function<void (event& ev)> cb(
std::bind1st( std::mem_fun(&myListener::member_event_callback), &listener )
);

FUNC::function<void (event& ev)> cb(
boost::bind( (&myListener::member_event_callback, &listener, _1 )
);

boost::bind<> is a powerful generalization of std::bind1st/bind2nd/mem_fun


Hope it helps,
Eugene




----- Original Message ----- 
From: "David Leffingwell" <dle...@ya...>
To: <tin...@li...>
Sent: Wednesday, December 10, 2003 11:51 AM
Subject: [Tinytl-general] function


> Hello Eugene,
>
> I saw your article in CodeProject, and downloaded
> tinytl from SourceForge. I tried it out a bit and it
> looks nice, however, regarding the "function"
> object...
>
> it would be nice if you could use non-static member
> functions in addition to static member functions or
> global functions.
>
> For example:
>
> class myListener
> {
> public:
>   static void static_event_callback( event& ev )
>   {
> event_visitor v;
> VAR::apply_visitor(v, ev);
>   }
>
>   void member_event_callback( event& ev )
>   {
> event_visitor v;
> VAR::apply_visitor(v, ev);
>   }
> };
>
> void global_event_callback( event& ev )
> {
>         event_visitor v;
>         VAR::apply_visitor(v, ev);
> }
>
> main()
> {
>
>   SIG::signal< void (event&) > sig;
>
>  // This works
>  //  FUNC::function<void (event&)>
> cb(global_event_callback);
>
>   // This works
>   FUNC::function<void (event&)>
> cb(myListener::static_event_callback);
>
>   // Something like this would be nice
>   // myListener listener;
>   // FUNC::function<void (event&)>
> cb(&listener,member_event_callback);
>
>   //
>   connection con = sig.connect( cb );
>
>   // ...
> }
>
> I was under the impression that Boost could do this.
>
> Thanks,
> Dave
>
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[Tinytl-general] function

[David L. <dle...@ya...>]

Hello Eugene,

I saw your article in CodeProject, and downloaded
tinytl from SourceForge. I tried it out a bit and it
looks nice, however, regarding the "function"
object... 

it would be nice if you could use non-static member
functions in addition to static member functions or
global functions.

For example:

class myListener
{
public:
  static void static_event_callback( event& ev )
  {
	event_visitor v;
	VAR::apply_visitor(v, ev);	
  }

  void member_event_callback( event& ev )
  {
	event_visitor v;
	VAR::apply_visitor(v, ev);	
  } 
};

void global_event_callback( event& ev )
{
        event_visitor v;
        VAR::apply_visitor(v, ev);
}

main()
{

  SIG::signal< void (event&) > sig;

 // This works
 //  FUNC::function<void (event&)>
cb(global_event_callback);

  // This works
  FUNC::function<void (event&)>
cb(myListener::static_event_callback);

  // Something like this would be nice
  // myListener listener;
  // FUNC::function<void (event&)>
cb(&listener,member_event_callback);

  // 
  connection con = sig.connect( cb );

  // ...
}

I was under the impression that Boost could do this.

Thanks,
Dave

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[Tinytl-general] test

[E. G. <egl...@co...>]

Please ignore

[Tinytl-general] test

[E. G. <egl...@ya...>]

Please ignore.
Eugene


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