From 5cd0dd8d55ee429121205f8fa5c3dace5301631b Mon Sep 17 00:00:00 2001
From: alex <alex@a5681a0c-68f1-0310-ab6d-d61299d08faa>
Date: Sun, 23 Jun 2002 22:28:06 +0000
Subject: [PATCH] In stead of a zillion warnings, only one place gives a
 warning for DNAN

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@147 a5681a0c-68f1-0310-ab6d-d61299d08faa
---
 src/rrd_format.h  | 14 +-------------
 src/rrd_nan_inf.c | 13 +++++++++++++
 src/rrd_nan_inf.h |  5 +++++
 3 files changed, 19 insertions(+), 13 deletions(-)
 create mode 100644 src/rrd_nan_inf.c
 create mode 100644 src/rrd_nan_inf.h

diff --git a/src/rrd_format.h b/src/rrd_format.h
index da0f1ba..b9fa2c2 100644
--- a/src/rrd_format.h
+++ b/src/rrd_format.h
@@ -22,19 +22,7 @@
 #define RRD_VERSION   "0002"
 #define FLOAT_COOKIE  8.642135E130
 
-#if defined(WIN32)
-#define DNAN          ((double)fmod(0.0,0.0))    
-#define DINF	      ((double)log(0.0))
-#else
-
-#define DNAN          ((double)(0.0/0.0))     /* we use a DNAN to
-					       * represent the UNKNOWN
-					       * */
-#define DINF          ((double)(1.0/0.0))     /* we use a DINF to
-					       * represent a value at the upper or
-					       * lower border of the graph ...
-					       * */
-#endif
+#include "rrd_nan_inf.h"
 
 typedef union unival { 
     unsigned long u_cnt; 
diff --git a/src/rrd_nan_inf.c b/src/rrd_nan_inf.c
new file mode 100644
index 0000000..473f51b
--- /dev/null
+++ b/src/rrd_nan_inf.c
@@ -0,0 +1,13 @@
+#include "rrd_nan_inf.h"
+
+#if defined(WIN32)
+
+double set_to_DNAN(void) { return (double)fmod(0.0,0.0); }
+double set_to_DINF(void) { return (double)log(0.0); }
+
+#else
+
+double set_to_DNAN(void) { return (double)(0.0/0.0); }
+double set_to_DINF(void) { return (double)(1.0/0.0); }
+
+#endif
diff --git a/src/rrd_nan_inf.h b/src/rrd_nan_inf.h
new file mode 100644
index 0000000..7934fdb
--- /dev/null
+++ b/src/rrd_nan_inf.h
@@ -0,0 +1,5 @@
+#define DNAN          set_to_DNAN()
+#define DINF          set_to_DINF()
+
+double set_to_DNAN(void);
+double set_to_DINF(void);
-- 
2.30.2