[GRASS-SVN] r47883 - grass/trunk/lib/vector/diglib

[svn_grass at osgeo.org]

Author: mmetz
Date: 2011-08-25 04:47:40 -0700 (Thu, 25 Aug 2011)
New Revision: 47883

Modified:
   grass/trunk/lib/vector/diglib/plus_struct.c
Log:
diglib: print some info when failing to open old vector topology

Modified: grass/trunk/lib/vector/diglib/plus_struct.c
===================================================================
--- grass/trunk/lib/vector/diglib/plus_struct.c	2011-08-25 11:38:19 UTC (rev 47882)
+++ grass/trunk/lib/vector/diglib/plus_struct.c	2011-08-25 11:47:40 UTC (rev 47883)
@@ -529,7 +529,19 @@
 	     " Consider to rebuild topology or upgrade GRASS.",
 	     ptr->Version_Major, ptr->Version_Minor);
     }
+    if (ptr->Version_Major < GV_TOPO_VER_MAJOR ||
+	(ptr->Version_Major == GV_TOPO_VER_MAJOR &&
+	 ptr->Version_Minor < GV_TOPO_VER_MINOR)) {
+	/* The file was created by GRASS library with lower version than this one */
 
+	/* This version of GRASS lib can not read this old format */
+	G_warning
+	    ("Old topology format version %d.%d is not supported by this release."
+	     " Try to rebuild topology.",
+	     ptr->Version_Major, ptr->Version_Minor);
+	return (-1);
+    }
+
     /* init Port_info structure and set as default */
     dig_init_portable(&(ptr->port), byte_order);
     dig_set_cur_port(&(ptr->port));