From 2f317d865276924e1c0a9c5464fec9a75f3fa1a2 Mon Sep 17 00:00:00 2001
From: David Rose <david@ddrose.com>
Date: Tue, 12 Oct 2010 23:13:27 +0000
Subject: [PATCH] cfrac

---
 dtool/src/dtoolbase/cmath.I | 9 +++++++++
 dtool/src/dtoolbase/cmath.h | 1 +
 2 files changed, 10 insertions(+)

diff --git a/dtool/src/dtoolbase/cmath.I b/dtool/src/dtoolbase/cmath.I
index ddb552961e..030eca6a33 100644
--- a/dtool/src/dtoolbase/cmath.I
+++ b/dtool/src/dtoolbase/cmath.I
@@ -190,6 +190,15 @@ cceil(double f) {
   #endif
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: cfrac
+//  Description: Returns the fractional component of f: f - cfloor(f).
+////////////////////////////////////////////////////////////////////
+INLINE double
+cfrac(double f) {
+  return f - cfloor(f);
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: csqrt
 //  Description: 
diff --git a/dtool/src/dtoolbase/cmath.h b/dtool/src/dtoolbase/cmath.h
index 53485d72fb..50103c7732 100644
--- a/dtool/src/dtoolbase/cmath.h
+++ b/dtool/src/dtoolbase/cmath.h
@@ -46,6 +46,7 @@ INLINE float cmod(float x, float y);
 
 INLINE double cfloor(double f);
 INLINE double cceil(double f);
+INLINE double cfrac(double f);
 INLINE double csqrt(double v);
 INLINE double csin(double v);
 INLINE double ccos(double v);