powm1_sqrtp1m1_test.cpp 2.6 KB

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  1. ///////////////////////////////////////////////////////////////
  2. // Copyright Christopher Kormanyos 2002 - 2011.
  3. // Copyright 2011 John Maddock. Distributed under the Boost
  4. // Software License, Version 1.0. (See accompanying file
  5. // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_
  6. //
  7. // This work is based on an earlier work:
  8. // "Algorithm 910: A Portable C++ Multiple-Precision System for Special-Function Calculations",
  9. // in ACM TOMS, {VOL 37, ISSUE 4, (February 2011)} (C) ACM, 2011. http://doi.acm.org/10.1145/1916461.1916469
  10. #include "setup.hpp"
  11. #include <boost/test/tools/floating_point_comparison.hpp>
  12. #include <boost/math/special_functions/powm1.hpp>
  13. #include <boost/math/special_functions/sqrt1pm1.hpp>
  14. #include "table_type.hpp"
  15. #include "libs/math/test/powm1_sqrtp1m1_test.hpp"
  16. //
  17. // DESCRIPTION:
  18. // ~~~~~~~~~~~~
  19. //
  20. // This file tests the functions log1p and expm1. The accuracy tests
  21. // use values generated with NTL::RR at 1000-bit precision
  22. // and our generic versions of these functions.
  23. //
  24. // Note that when this file is first run on a new platform many of
  25. // these tests will fail: the default accuracy is 1 epsilon which
  26. // is too tight for most platforms. In this situation you will
  27. // need to cast a human eye over the error rates reported and make
  28. // a judgement as to whether they are acceptable. Either way please
  29. // report the results to the Boost mailing list. Acceptable rates of
  30. // error are marked up below as a series of regular expressions that
  31. // identify the compiler/stdlib/platform/data-type/test-data/test-function
  32. // along with the maximum expected peek and RMS mean errors for that
  33. // test.
  34. //
  35. void expected_results()
  36. {
  37. //
  38. // Define the max and mean errors expected for
  39. // various compilers and platforms.
  40. //
  41. //
  42. // Catch all cases come last:
  43. //
  44. add_expected_result(
  45. ".*", // compiler
  46. ".*", // stdlib
  47. ".*", // platform
  48. ".*", // test type(s)
  49. ".*", // test data group
  50. ".*", // test function
  51. 15, // Max Peek error
  52. 5); // Max mean error
  53. //
  54. // Finish off by printing out the compiler/stdlib/platform names,
  55. // we do this to make it easier to mark up expected error rates.
  56. //
  57. std::cout << "Tests run with " << BOOST_COMPILER << ", "
  58. << BOOST_STDLIB << ", " << BOOST_PLATFORM << std::endl;
  59. }
  60. template <class T>
  61. void test(T t, const char* p)
  62. {
  63. test_powm1_sqrtp1m1(t, p);
  64. }
  65. BOOST_AUTO_TEST_CASE( test_main )
  66. {
  67. expected_results();
  68. ALL_TESTS
  69. }