Lisandro Dalcin wrote: > On 2/11/08, Travis Oliphant <[EMAIL PROTECTED]> wrote: >> My perception is that you are seeing too much of a connection between >> the C-compiler and the PEP description of memory. Perhaps that's not >> it, and I'm missing something else. >> > > Travis, all this make me believe that (perhaps) the 'format' > specification in the new buffer interface is missing the 'C' or 'F' > ordering in the case of a countiguos block. I'm missing something? Or > should we always assume a 'C' ordering?
There is an ability to specify 'F' for the overall buffer. In the description of each element, however, (i.e. in the struct-syntax), the multi-dimensional character is always communicated in 'C' order (last-dimension varies the fastest). I thought about adding the ability to specify the multi-dimensional order as 'F' in the struct-syntax for each element, but felt against it as you can simulate 'F' order by thinking of the array in transpose fashion: i.e. your 3x5 Fortran-order array is really a 5x3 (C-order array). Of course, the same is true on the larger scale when we are talking about multi-dimensional arrays of "elements," but on that level connecting with Fortran libraries is much more common and so we have found the help useful in NumPy. -Travis O. _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
