Charles R Harris wrote: > On Tue, Mar 15, 2011 at 9:12 AM, Sturla Molden <stu...@molden.no> wrote: > >> Den 14.03.2011 23:10, skrev Matthieu Brucher: >> > - Fortran 95 has an excellent array support, which is not currently >> > available in C/C++ (perhaps with ArBB?) >> >> In C++ you can actually make array libraries that behave almost like a >> Fortran compiler (cf. Blitz++, Intel Array Building Blocks), but they >> must be maintained to keep pace with Fortran compilers. >> >> > There really isn't a satisfactory array library for C++. The fact that every > couple of years there is another project to produce one testifies to that > fact. And don't overlook that Fortran knows about complex numbers as well as > arrays. > > Chuck
This is partly (largely?) because different users want different things from the array abstraction. I don't know if I can even start to list the differences, but let's try: * 1-d, 2-d only or N-d?? * support for slice views? What exactly kind of support? * semantics like numpy, that make many operations avoid copy? * what support for arithmetic operations? Do views support arithmetic operations? * expression templates? * How's the performance with indexing? Multi-D indexing? How about iteration? * What are the semantics of iterators? I don't think I've seen 2 libs that treat multi-d iterators the same way (and I've tried a lot of them). _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
