Don't pollute the namespace when protecting against multiple header inclusion.
Prefix with Py_ and use standard naming convention Py_FILENAME_H.
-#ifndef CSTRINGIO_INCLUDED
-#define CSTRINGIO_INCLUDED
+#ifndef Py_CSTRINGIO_H
+#define Py_CSTRINGIO_H
#ifdef __cplusplus
extern "C" {
#endif
#ifdef __cplusplus
}
#endif
-#endif /* CSTRINGIO_INCLUDED */
+#endif /* !Py_CSTRINGIO_H */
/* Complex number structure */
-#ifndef COMPLEXOBJECT_H
-#define COMPLEXOBJECT_H
+#ifndef Py_COMPLEXOBJECT_H
+#define Py_COMPLEXOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
#ifdef __cplusplus
}
#endif
-#endif /* !COMPLEXOBJECT_H */
+#endif /* !Py_COMPLEXOBJECT_H */