From 22baedd972429c03c4c4d836a11f81f646ce0c92 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@gmail.com>
Date: Mon, 6 Feb 2012 10:11:22 -0500
Subject: Add debugging tests for NaN values.

---
 libdimension/dimension/color.h | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'libdimension/dimension/color.h')

diff --git a/libdimension/dimension/color.h b/libdimension/dimension/color.h
index 34f3884..967e9a5 100644
--- a/libdimension/dimension/color.h
+++ b/libdimension/dimension/color.h
@@ -164,6 +164,13 @@ dmnsn_color_saturate(dmnsn_color color)
   return color;
 }
 
+/** Return whether a color contains any NaN components. */
+DMNSN_INLINE bool
+dmnsn_color_isnan(dmnsn_color color)
+{
+  return isnan(color.R) || isnan(color.G) || isnan(color.B);
+}
+
 /* Standard colors */
 
 /** Black. */
-- 
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