From 1c5accf1a195616f241f0a31f07e5a1847a3941d Mon Sep 17 00:00:00 2001
From: Tom Rondeau <trondeau@vt.edu>
Date: Tue, 30 Oct 2012 17:19:55 -0400
Subject: analog: adding sincos functions to gr-analog.
Adds QA test in C++ for sincos and the structure for running CppUnit tests in gr-analog.
---
gr-analog/lib/qa_sincos.cc | 75 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 75 insertions(+)
create mode 100644 gr-analog/lib/qa_sincos.cc
(limited to 'gr-analog/lib/qa_sincos.cc')
diff --git a/gr-analog/lib/qa_sincos.cc b/gr-analog/lib/qa_sincos.cc
new file mode 100644
index 0000000000..62642c1171
--- /dev/null
+++ b/gr-analog/lib/qa_sincos.cc
@@ -0,0 +1,75 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2012 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio 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 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <qa_sincos.h>
+#include <analog/sincos.h>
+#include <gruel/attributes.h>
+#include <cppunit/TestAssert.h>
+#include <cmath>
+
+namespace gr {
+ namespace analog {
+
+ void
+ qa_sincos::t1()
+ {
+ static const unsigned int N = 1000;
+ double c_sin, c_cos;
+ double gr_sin, gr_cos;
+
+ for(unsigned i = 0; i < N; i++) {
+ double x = i/100.0;
+ c_sin = sin(x);
+ c_cos = cos(x);
+
+ analog::sincos(x, &gr_sin, &gr_cos);
+
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(c_sin, gr_sin, 0.0001);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(c_cos, gr_cos, 0.0001);
+ }
+ }
+
+ void
+ qa_sincos::t2()
+ {
+ static const unsigned int N = 1000;
+ float c_sin, c_cos;
+ float gr_sin, gr_cos;
+
+ for(unsigned i = 0; i < N; i++) {
+ float x = i/100.0;
+ c_sin = sinf(x);
+ c_cos = cosf(x);
+
+ analog::sincosf(x, &gr_sin, &gr_cos);
+
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(c_sin, gr_sin, 0.0001);
+ CPPUNIT_ASSERT_DOUBLES_EQUAL(c_cos, gr_cos, 0.0001);
+ }
+ }
+
+ } /* namespace analog */
+} /* namespace gr */
--
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