SWIG中包含OpenCV core.hpp时的语法错误

Question

I'm trying to use SWIG to wrap OpenCV's C++ API. However, when I compile, I got this error:

/usr/local/Cellar/opencv/2.4.10.1/include/opencv2/core/core.hpp:123:
Error: Syntax error - possibly a missing semicolon.

and here is my SWIG file

%module example

%{
#include "opencv2/core/core.hpp"
%}

%include "opencv2/core/core.hpp"

I'm not sure if this is an error from SWIG or from OpenCV. Is it OK to only include core.hpp like this?

Thanks.

Answer 1

OK, I found the problem might be caused by the nested header including.

In opencv2/core/core.hpp, there is

#include "opencv2/core/types_c.h"
#include "opencv2/core/version.hpp"

and hence if I add these two headers to my swig file:

%include "opencv2/core/types_c.h"
%include "opencv2/core/version.hpp"
%include "opencv2/core/core.hpp"

It will not raise the missing semicolon error.