Re: Request for comment: follow-up to Summer of Code

beliavsky@xxxxxxx wrote:


> In my earlier message I compared Fortran to C, not C++. I think the
> functionality of Fortran's multidimensional arrays (elemental
> functions, array slices) is more extensive than that of C++, whose
> arrays have the same properties as those of C.

People masochistic enough to work by choice in C++ would usually use
the Boost or Blitz++ multidim arrays, which both make extensive
use of templates and operator overloading to embed multidim-array
little languages into C++:

Boost:
http://www.boost.org/libs/multi_array/doc/user.html

Blitz++:
http://www.oonumerics.org/blitz/manual/blitz02.html#l30

>From Blitz++ example:

#include <blitz/array.h>

using namespace blitz;

int main()
{
Array<float,2> A(3,3), B(3,3), C(3,3);

A = 1, 0, 0,
2, 2, 2,
1, 0, 0;

B = 0, 0, 7,
0, 8, 0,
9, 9, 9;

C = A + B;
cout << "A = " << A << endl
<< "B = " << B << endl
<< "C = " << C << endl;

return 0;
}

As you can see, a bit of a step up from C arrays. I know many C++
programmers don't consider C++ a complete language without Boost.

Fortran 90 or above is still a nicer choice IMHO, really, it makes for
clearer code (to the countless scientists and engineers who know and
"love" fortran) and still integrates better with the vast corpus of
fortran numerics libraries built up over the past decades, but anyway.



.

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