From: Florian Forster <octo@huhu.verplant.org>
Date: Thu, 4 Feb 2010 12:07:06 +0000 (+0100)
Subject: src/collectd.h: Add fallback implementations of "isfinite" and "isinf".
X-Git-Tag: collectd-4.8.4~27
X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=e0b3aa9ba8254ab29d86b294553a5413b7efa59a;p=collectd.git

src/collectd.h: Add fallback implementations of "isfinite" and "isinf".
---

diff --git a/src/collectd.h b/src/collectd.h
index 3d8998fd..957654bc 100644
--- a/src/collectd.h
+++ b/src/collectd.h
@@ -135,6 +135,12 @@ typedef bool _Bool;
 # ifndef isnan
 #  define isnan(f) ((f) != (f))
 # endif /* !defined(isnan) */
+# ifndef isfinite
+#  define isfinite(f) (((f) - (f)) == 0.0)
+# endif
+# ifndef isinf
+#  define isinf(f) (!isfinite(f) && !isnan(f))
+# endif
 #endif /* NAN_ZERO_ZERO */
 
 /* Try really, really hard to determine endianess. Under NexentaStor 1.0.2 this