通过SWIG从Python中的C函数返回Struct数据类型

Question

I have a C-function which returns a struct data type with several items in it (size_t, char*, int, unsigned and other structs). When I call this function there is no output in python. After some googling I think the problem is that I didn't declare the data type in my interface file. But this turns out to be not that easy. What is the right approach: typemaps or just a simple typedef ?

Can someone help me?

Answer 1

You need to %include the header first. You need the headers for the nested structs too, in dependency order!

After you've done that, Swig should automatically wrap the struct so that a call to your function will return a proxy object with the appropriate members.

A typemap is for when you want to change Swig's default behaviors.