[Pyrex] Wrapping nested structs

[Greg Ewing]

"Edward C. Jones" <edcjones at erols.com>:

> How do I wrap the following four snippets of code?

Something like this (untested):


--------------------------------
Snippet 1
--------------------------------

cdef extern from "something.h":

  # Embedded structs/unions have to be broken out
  # and explicitly named

  ctypedef struct Small:
    int i

  ctypedef struct AAA:
    Small sm

  cdef Small clone(Small sm);

--------------------------------
Snippet 2
--------------------------------

cdef extern from "something.h":

  cdef struct SmallStruct:
    int i

  ctypedef struct BBB:
    SmallStruct Small

--------------------------------
Snippet 3
--------------------------------

cdef extern from "something.h":

  cdef union NumUnion:
    int i
    float x

  ctypedef struct CCC:
    NumUnion Num

--------------------------------
Snippet 4
--------------------------------

cdef extern from "something.h":

  ctypedef struct Point:
    # We're lying here, and relying on the fact that
    # "something.h" will supply the real definition at
    # C compilation time. This will ONLY work inside a
    # "cdef extern from" block!
    int x
    int col
    int y
    int row

Greg Ewing, Computer Science Dept, +--------------------------------------+
University of Canterbury,	   | A citizen of NewZealandCorp, a	  |
Christchurch, New Zealand	   | wholly-owned subsidiary of USA Inc.  |
greg at cosc.canterbury.ac.nz	   +--------------------------------------+