diff src/fftw-3.3.3/libbench2/zero.c @ 10:37bf6b4a2645

Add FFTW3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/fftw-3.3.3/libbench2/zero.c	Wed Mar 20 15:35:50 2013 +0000
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2001 Matteo Frigo
+ * Copyright (c) 2001 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+
+#include "bench.h"
+
+/* set I/O arrays to zero.  Default routine */
+void problem_zero(bench_problem *p)
+{
+     bench_complex czero = {0, 0};
+     if (p->kind == PROBLEM_COMPLEX) {
+	  caset((bench_complex *) p->inphys, p->iphyssz, czero);
+	  caset((bench_complex *) p->outphys, p->ophyssz, czero);
+     } else if (p->kind == PROBLEM_R2R) {
+	  aset((bench_real *) p->inphys, p->iphyssz, 0.0);
+	  aset((bench_real *) p->outphys, p->ophyssz, 0.0);
+     } else if (p->kind == PROBLEM_REAL && p->sign < 0) {
+	  aset((bench_real *) p->inphys, p->iphyssz, 0.0);
+	  caset((bench_complex *) p->outphys, p->ophyssz, czero);
+     } else if (p->kind == PROBLEM_REAL && p->sign > 0) {
+	  caset((bench_complex *) p->inphys, p->iphyssz, czero);
+	  aset((bench_real *) p->outphys, p->ophyssz, 0.0);
+     } else {
+	  BENCH_ASSERT(0); /* TODO */
+     }
+}