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Re: [Help-gsl] C++ interface/wrapper for gsl

From: John D Lamb
Subject: Re: [Help-gsl] C++ interface/wrapper for gsl
Date: Tue, 27 Apr 2010 06:21:35 +0100

I have some C++ wrappers I use. I could publish them if anyone is
interested in using them.

Essentially I’m not interested in changing GSL. I just want to take
advantage of some features of C++:

1. Objects can be created as shared-pointer-like handles (avoiding
new/delete/malloc/free) and runtime problems.
2. Objects can be stored in STL containers. For example, I sometimes
create a std::list<ccgsl::vector> object that stores a list of GSL
3. Occasionally it’s useful to treat GSL vectors as STL containers. For
example std::copy( vector.begin(), vector.end(),
std::ostream_iterator<double>( std::cout, " " ) copies a vector to
standard output.
4. I want the option to use C++ exception handling instead of GSL error

I’ve wrappers for a few classes. For example, the vector class provides
a handle, adds all the STL container properties, and provides all the
standard GSL vector functions. Typically I would use, for example,
vector.set( i, value ) instead of gsl_vector_set( vector, i, value).

I put everything in a header file so that I don’t add additional
libraries and don’t slow GSL unnecessarily — all the member functions
are inline so that the compiler can replace them with the same code it
would create from GSL. I generate most of the header file by running a
Ruby script on the GSL header file.

I haven’t added, for example, vector addition through operator

On Mon, 2010-04-26 at 09:38 -0400, Forest Yang wrote: 
> Can you say more about why you need a C++ wrapper ?
> I have been using C++ and happy with linking to original GSL, no extra
> work needed at all (maybe some in the OO design part).
> > I would like to know if there is an up-to-date free (i.e. GPLed) C++
> > interface to (most of) GSL.


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