[Cython] Defaults in cdef or cpdef methods

[Robert Bradshaw]

On Jun 19, 2008, at 5:07 AM, Johannes Wienke wrote:

> Hi,
>
> is there a was to use default values for parameters in cdef or cpdef
> methods? I observed that using them in the pxd files caused a cython
> compiler error and using the only in the implementation causes a C
> compiler error.

Yes, you need to declare them to have default parameters in .pxd  
files, then can use them in .pyx files. For example:

---- pxd ----

cdef foo(x, y=*)

---- pyx ----

cdef foo(x, y=None):
     print x,y

See http://wiki.cython.org/DifferencesFromPyrex#head- 
b2cbb6bf07c3c8c5bb0d10b89d9736eb0fc63440

- Robert

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