From 5d735255ddd3cb2f547abd3d03969af3fb7eb04e Mon Sep 17 00:00:00 2001
From: scuri <scuri>
Date: Thu, 20 Aug 2009 12:35:06 +0000
Subject: *** empty log message ***

---
 src/fftw3/kernel/trig1.c | 70 ------------------------------------------------
 1 file changed, 70 deletions(-)
 delete mode 100644 src/fftw3/kernel/trig1.c

(limited to 'src/fftw3/kernel/trig1.c')

diff --git a/src/fftw3/kernel/trig1.c b/src/fftw3/kernel/trig1.c
deleted file mode 100644
index b86362c..0000000
--- a/src/fftw3/kernel/trig1.c
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright (c) 2003 Matteo Frigo
- * Copyright (c) 2003 Massachusetts Institute of Technology
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- */
-
-/* $Id: trig1.c,v 1.1 2008/10/17 06:11:29 scuri Exp $ */
-
-/* trigonometric functions */
-#include "ifftw.h"
-#include <math.h>
-
-#ifdef FFTW_LDOUBLE
-#  define COS cosl
-#  define SIN sinl
-#  define TAN tanl
-#  define KTRIG(x) (x##L)
-#else
-#  define COS cos
-#  define SIN sin
-#  define TAN tan
-#  define KTRIG(x) (x)
-#endif
-
-static const trigreal K2PI =
-    KTRIG(6.2831853071795864769252867665590057683943388);
-#define by2pi(m, n) ((K2PI * (m)) / (n))
-
-/*
- * Improve accuracy by reducing x to range [0..1/8]
- * before multiplication by 2 * PI.
- */
-
-trigreal X(sincos)(trigreal m, trigreal n, int sinp)
-{
-     /* waiting for C to get tail recursion... */
-     trigreal half_n = n * KTRIG(0.5);
-     trigreal quarter_n = half_n * KTRIG(0.5);
-     trigreal eighth_n = quarter_n * KTRIG(0.5);
-     trigreal sgn = KTRIG(1.0);
-
-     if (sinp) goto sin;
- cos:
-     if (m < 0) { m = -m; /* goto cos; */ }
-     if (m > half_n) { m = n - m; goto cos; }
-     if (m > eighth_n) { m = quarter_n - m; goto sin; }
-     return sgn * COS(by2pi(m, n));
-
- msin:
-     sgn = -sgn;
- sin:
-     if (m < 0) { m = -m; goto msin; }
-     if (m > half_n) { m = n - m; goto msin; }
-     if (m > eighth_n) { m = quarter_n - m; goto cos; }
-     return sgn * SIN(by2pi(m, n));
-}
-- 
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