merge local branch 'mover_in_c++'

ref/python/include/warnings.h

@@ -0,0 +1,23 @@
+#ifndef Py_WARNINGS_H
+#define Py_WARNINGS_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+PyAPI_FUNC(void) _PyWarnings_Init(void);
+
+PyAPI_FUNC(int) PyErr_WarnEx(PyObject *, const char *, Py_ssize_t);
+PyAPI_FUNC(int) PyErr_WarnExplicit(PyObject *, const char *, const char *, int,
+                                    const char *, PyObject *);
+
+#define PyErr_WarnPy3k(msg, stacklevel) \
+  (Py_Py3kWarningFlag ? PyErr_WarnEx(PyExc_DeprecationWarning, msg, stacklevel) : 0)
+
+/* DEPRECATED: Use PyErr_WarnEx() instead. */
+#define PyErr_Warn(category, msg) PyErr_WarnEx(category, msg, 1)
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !Py_WARNINGS_H */
+