1.
Write an Example.c
/ /< --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
/ * File: eXample.c * /
/ * A global variable * /
Double foo = 3.0;
/ * Compute the greatest common divisor of positive integers * /
INT GCD (int X, int y) {
INT G;
g = y;
While (x> 0) {
g = x;
x = y% x;
y = g;
}
Return G;
}
/% ----------------------------
2.
Write Example.i
/ /< -------------Example.i ----------------
/ * File: eXample.i * /
% Module EXAMPLE
Extern Int GCD (INT X, INT Y);
Extern double foo;
/) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
3.
Run the following command, you will generate an example_wrap.c:
SWIG -PYTHON EXAMPLE.I
4.
Create a Windows DLL project in VC6 (notice that not console), join the example.c and example_wrap.c,
And set the generated DLL name to _example.dll (note that there is an underscore), then compile.
5.
Copy the DLL of the previous step to the corresponding directory of Python.
6.
Use Example in Python:
>>> IMPORT EXAMPLE
>>> Print example.cvar.foo
3.0
>>> a = esample.gcd (42, 23)
>>> Print A
1
