Den 08.08.2011 11:47, skrev Dag Sverre Seljebotn: > This come up now and again and I believe there's several > half-baked/started solutions out there by Cython users, but nothing > that is standard or that I know is carried out to completion. I.e., > you should ask on the cython-users list. It'd be good if somebody > would compile a list of the efforts so far on the wiki as well...
I wrote a mock-up pxd-generator for the OpenGL headers. It only worked with a particular set of OpenGL header files, and the output still required a few cases of manual editing. But this still saved me a lot of time re-declaring OpenGL to Cython, and an important benefit is correctness (i.e. almost no manual code to proof) :) The script is so bad, though, I am not sure I want to show it to anyone ;-) Writing a general "headerfile2pxd.py" script is a huge undertaking. The C preprocessor makes this particularly annoying, because some symbols might be defined at compile-time. To make things worse, C headers can also be recursive. Running the preprocessor in advance is not an option either, because some C APIs rely heavily on defined symbols. These will not survive through the preprocessor. Sometimes we want to fool Cython into thinking that a defined constant is an external variable or function with some C types, which also complicates this effort. It's not that bad if we write a generator for a particular set of header files, but a PITA when we write one for general use. Sturla _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
