Remove headfings in Error and status and sort out non global opening of DBs

include/site/python3.12/igraph/igraphmodule_api.h

@@ -0,0 +1,69 @@
+/* -*- mode: C -*-  */
+/* vim:set ts=2 sw=2 sts=2 et: */
+/*
+   IGraph library.
+   Copyright (C) 2006-2023  Tamas Nepusz <ntamas@gmail.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc.,  51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301 USA
+
+*/
+
+#ifndef Py_IGRAPHMODULE_H
+#define Py_IGRAPHMODULE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* C API functions */
+#define PyIGraph_FromCGraph_NUM 0
+#define PyIGraph_FromCGraph_RETURN PyObject*
+#define PyIGraph_FromCGraph_PROTO (igraph_t *graph)
+
+#define PyIGraph_ToCGraph_NUM 1
+#define PyIGraph_ToCGraph_RETURN igraph_t*
+#define PyIGraph_ToCGraph_PROTO (PyObject *graph)
+
+/* Total number of C API pointers */
+#define PyIGraph_API_pointers 2
+
+#ifdef IGRAPH_MODULE
+  /* This section is used when compiling igraphmodule.c */
+  static PyIGraph_FromCGraph_RETURN PyIGraph_FromCGraph PyIGraph_FromCGraph_PROTO;
+  static PyIGraph_ToCGraph_RETURN PyIGraph_ToCGraph PyIGraph_ToCGraph_PROTO;
+#else
+  /* This section is used in modules that use igraph's API */
+  static void** PyIGraph_API;
+# define PyIGraph_FromCGraph \
+         (*(PyIGraph_FromCGraph_RETURN (*)PyIGraph_FromCGraph_PROTO) \
+		 PyIGraph_API[PyIGraph_FromCGraph_NUM])
+# define PyIGraph_ToCGraph \
+         (*(PyIGraph_ToCGraph_RETURN (*)PyIGraph_ToCGraph_PROTO) \
+		 PyIGraph_API[PyIGraph_ToCGraph_NUM])
+
+  /* Return -1 and set exception on error, 0 on success */
+  static int import_igraph(void) {
+    PyIGraph_API = (void **)PyCapsule_Import("igraph._igraph._C_API", 0);
+    return (PyIGraph_API != NULL) ? 0 : -1;
+  }
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif   /* !defined(Py_IGRAPHMODULE_H) */