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From: Christian Henning (chhenning_at_[hidden])
Date: 2008-03-10 23:02:45


very good news! I'm glad to see that an important milestone has been
reached. This library is of great interest to me. Though, I wasted no
time to and started to play around with the library.

As a start I'm trying to get the simple example compiled which can be
found in your documentation:

But unfortunately including
#include <boost/dataflow/signals/component/filter.hpp>

brings my compiler to explode. Here are a list of the first few errors produced:

c:\boost_trunk\boost\fusion\mpl\clear.hpp(26) : error C2039: 'tag_of'
: is not a member of 'boost::fusion::detail'
        c:\boost_trunk\boost\fusion\mpl\clear.hpp(28) : see reference
to class template instantiation
being compiled
c:\boost_trunk\boost\fusion\mpl\clear.hpp(26) : error C2146: syntax
error : missing ',' before identifier 'tag_of'
c:\boost_trunk\boost\fusion\mpl\clear.hpp(26) : error C2065: 'tag_of'
: undeclared identifier
c:\boost_trunk\boost\fusion\mpl\clear.hpp(26) : error C2976:
'boost::fusion::detail::clear' : too few template arguments
        c:\boost_trunk\boost\fusion\mpl\detail\clear.hpp(27) : see
declaration of 'boost::fusion::detail::clear'

I'm working with the boost trunk and use the MSVC compiler 7.1. I
think I remember those errors from an earlier attempt to compile the
dataflow lib. Is it my compiler or is my fusion version outdated.
Although, as I mentioned I'm working with the trunk.


On Mon, Mar 10, 2008 at 9:25 PM, Stjepan Rajko <stipe_at_[hidden]> wrote:
> Hello,
> I would like to request a formal review of the Dataflow.Signals layer
> of the Dataflow library. The Dataflow.Signals layer provides
> dataflow functionality based on function calls (using Boost.Signals),
> and is a result of the Signal Networks GSoC project from 2007. (The
> other layers of the Dataflow library are not quite ready, so for now
> I'd like to keep them as implementation details and/or examples of the
> Dataflow.Signals layer, and submit them for review at a later point.)
> The documentation for the Dataflow library is located at:
> Version 0.9.0 has been uploaded to the vault, in the Dataflow directory.
> There are a few more things I plan to add before the library comes up
> for review, especially regarding the documentation and motivating
> examples.
> Description:
> The Dataflow library is a generic library for dataflow programming.
> Dataflow programs can typically be expressed as a graph in which
> vertices represent components that process data, and edges represent
> the flow of data between the components. As such, dataflow programs
> can be easily reconfigured by changing the components and/or the
> connections.
> The Dataflow.Signals layer provides dataflow functionality based on
> function calls - which is one of the fundamental ways of dataflow in
> C++. For its data transport mechanism, Dataflow.Signals uses
> Boost.Signals which can be used to make lasting dataflow connections
> based on function calls.
> Dataflow.Signals provides the following to facilitate signals-based
> dataflow networks:
> * A number of useful general-purpose components, and building
> blocks for implementing new components.
> * Various free functions and operators for connecting and using components.
> Kind regards,
> Stjepan
> _______________________________________________
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