On some architectures, strtod does not turn "NaN" into 'Not A Number (NAN)'

se we better provide our own code here.

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@1705 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/src/rrd_restore.c b/src/rrd_restore.c
index f803ab6..e9363c6 100644 (file)
--- a/src/rrd_restore.c
+++ b/src/rrd_restore.c
@@ -143,6 +143,13 @@ static int get_double_from_node(
         return (-1);
     }
 
+    if (strstr(str_ptr, "NaN") != NULL)
+    {
+        *value = DNAN;   
+        xmlFree(str_ptr);
+        return 0;
+    }
+
     end_ptr = NULL;
     temp = strtod(str_ptr, &end_ptr);
     xmlFree(str_ptr);