Merge pull request #219 from jcarpent/devel

Add SWIG support

Author: jcarpent

CMakeLists.txt

@@ -128,6 +128,7 @@ SET(${PROJECT_NAME}_HEADERS
   include/eigenpy/ufunc.hpp
   include/eigenpy/register.hpp
   include/eigenpy/stride.hpp
+  include/eigenpy/swig.hpp
   include/eigenpy/version.hpp
 )
 

include/eigenpy/swig.hpp

@@ -0,0 +1,33 @@
+//
+// Copyright (c) 2020 INRIA
+//
+
+#ifndef __eigenpy_swig_hpp__
+#define __eigenpy_swig_hpp__
+
+#include "eigenpy/fwd.hpp"
+
+namespace eigenpy
+{
+  struct PySwigObject
+  {
+    PyObject_HEAD
+    void * ptr;
+    const char * desc;
+  };
+
+  inline PySwigObject * get_PySwigObject(PyObject * pyObj)
+  {
+    if(!PyObject_HasAttrString(pyObj,"this"))
+      return NULL;
+    
+    PyObject * this_ptr = PyObject_GetAttrString(pyObj,"this");
+    if(this_ptr == NULL)
+      return NULL;
+    PySwigObject * swig_obj = reinterpret_cast<PySwigObject*>(this_ptr);
+    
+    return swig_obj;
+  }
+}
+
+#endif // ifndef __eigenpy_swig_hpp__