2
0
mirror of https://github.com/boostorg/math.git synced 2026-01-28 19:32:08 +00:00
Files
math/test/test_cbrt.cpp
John Maddock 381bddafa0 Finish moving test cases into headers.
Fix array declarations so GCC doesn't warn about them.
Declare constants in headers so they can be used by UDT's larger than type long double.
Suppress a few warnings and fix a couple of bugs that showed up when testing with UDT's.

[SVN r75960]
2011-12-15 11:23:35 +00:00

91 lines
3.0 KiB
C++

// Copyright John Maddock 2006.
// Copyright Paul A. Bristow 2010
// 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)
#ifdef _MSC_VER
# pragma warning (disable : 4224)
#endif
#include <pch.hpp> // include /libs/math/src/
#include "test_cbrt.hpp"
//
// DESCRIPTION:
// ~~~~~~~~~~~~
//
// This file tests the function cbrt. The accuracy tests
// use values generated with NTL::RR at 1000-bit precision
// and our generic versions of these functions.
//
// Note that when this file is first run on a new platform many of
// these tests will fail: the default accuracy is 1 epsilon which
// is too tight for most platforms. In this situation you will
// need to cast a human eye over the error rates reported and make
// a judgement as to whether they are acceptable. Either way please
// report the results to the Boost mailing list. Acceptable rates of
// error are marked up below as a series of regular expressions that
// identify the compiler/stdlib/platform/data-type/test-data/test-function
// along with the maximum expected peek and RMS mean errors for that
// test.
//
void expected_results()
{
//
// Define the max and mean errors expected for
// various compilers and platforms.
//
const char* largest_type;
#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
if(boost::math::policies::digits<double, boost::math::policies::policy<> >() == boost::math::policies::digits<long double, boost::math::policies::policy<> >())
{
largest_type = "(long\\s+)?double|real_concept";
}
else
{
largest_type = "long double|real_concept";
}
#else
largest_type = "(long\\s+)?double|real_concept";
#endif
add_expected_result(
"Borland.*", // compiler
".*", // stdlib
".*", // platform
"long double", // test type(s)
".*", // test data group
".*", 10, 6); // test function
add_expected_result(
".*", // compiler
".*", // stdlib
".*", // platform
largest_type, // test type(s)
".*", // test data group
".*", 2, 2); // test function
//
// Finish off by printing out the compiler/stdlib/platform names,
// we do this to make it easier to mark up expected error rates.
//
std::cout << "Tests run with " << BOOST_COMPILER << ", "
<< BOOST_STDLIB << ", " << BOOST_PLATFORM << std::endl;
}
int test_main(int, char* [])
{
expected_results();
BOOST_MATH_CONTROL_FP;
test_cbrt(0.1F, "float");
test_cbrt(0.1, "double");
#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
test_cbrt(0.1L, "long double");
#ifndef BOOST_MATH_NO_REAL_CONCEPT_TESTS
test_cbrt(boost::math::concepts::real_concept(0.1), "real_concept");
#endif
#endif
return 0;
}