From: Tobias Oetiker <tobi@oetiker.ch>
Date: Wed, 10 Dec 2008 13:18:10 +0000 (+0000)
Subject: On some architectures, strtod does not turn "NaN" into 'Not A Number (NAN)'
X-Git-Tag: 1.4.0~179
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ad8f808f5c58bafe4b5d10cedbebdfa11d90fdc7;p=thirdparty%2Frrdtool-1.x.git

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 f803ab68..e9363c6e 100644
--- 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);