Initial commit

libs/math/performance/test_cbrt.cpp

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+//  Copyright John Maddock 2007.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include "required_defines.hpp"
+#include "performance_measure.hpp"
+
+#include <boost/math/special_functions/cbrt.hpp>
+
+double cbrt_test()
+{
+   double result = 0;
+   double val = 1e-100;
+   for(int i = 0; i < 1000; ++i)
+   {
+      val *= 1.5;
+      result += boost::math::cbrt(val);
+   }
+   return result;
+}
+
+BOOST_MATH_PERFORMANCE_TEST(cbrt_test, "cbrt")
+{
+   double result = cbrt_test();
+
+   consume_result(result);
+   set_call_count(1000);
+}
+
+double cbrt_pow_test()
+{
+   double result = 0;
+   double val = 1e-100;
+   for(int i = 0; i < 1000; ++i)
+   {
+      val *= 1.5;
+      result += std::pow(val, 0.33333333333333333333333333333333);
+   }
+   return result;
+}
+
+BOOST_MATH_PERFORMANCE_TEST(cbrt_pow_test, "cbrt-pow")
+{
+   double result = cbrt_pow_test();
+
+   consume_result(result);
+   set_call_count(1000);
+}
+
+#ifdef TEST_CEPHES
+
+extern "C" double cbrt(double);
+
+double cbrt_cephes_test()
+{
+   double result = 0;
+   double val = 1e-100;
+   for(int i = 0; i < 1000; ++i)
+   {
+      val *= 1.5;
+      result += ::cbrt(val);
+   }
+   return result;
+}
+
+BOOST_MATH_PERFORMANCE_TEST(cbrt_test, "cbrt-cephes")
+{
+   double result = cbrt_cephes_test();
+
+   consume_result(result);
+   set_call_count(1000);
+}
+
+#endif
+
+#if defined(__GNUC__) && (__GNUC__ >= 4)
+
+#include <math.h>
+
+double cbrt_c99_test()
+{
+   double result = 0;
+   double val = 1e-100;
+   for(int i = 0; i < 1000; ++i)
+   {
+      val *= 1.5;
+      result += ::cbrt(val);
+   }
+   return result;
+}
+
+BOOST_MATH_PERFORMANCE_TEST(cbrt_c99_test, "cbrt-c99")
+{
+   double result = cbrt_c99_test();
+
+   consume_result(result);
+   set_call_count(1000);
+}
+
+#endif