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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libstdc++-v3/testsuite/tr1/5_numerical_facilities/special_functions/05_comp_ellint_2/check_value.cc | |
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Diffstat (limited to 'libstdc++-v3/testsuite/tr1/5_numerical_facilities/special_functions/05_comp_ellint_2/check_value.cc')
-rw-r--r-- | libstdc++-v3/testsuite/tr1/5_numerical_facilities/special_functions/05_comp_ellint_2/check_value.cc | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/tr1/5_numerical_facilities/special_functions/05_comp_ellint_2/check_value.cc b/libstdc++-v3/testsuite/tr1/5_numerical_facilities/special_functions/05_comp_ellint_2/check_value.cc new file mode 100644 index 000000000..8cd04228c --- /dev/null +++ b/libstdc++-v3/testsuite/tr1/5_numerical_facilities/special_functions/05_comp_ellint_2/check_value.cc @@ -0,0 +1,96 @@ +// 2007-02-04 Edward Smith-Rowland <3dw4rd@verizon.net> +// +// Copyright (C) 2007, 2009 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library 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. +// +// This library 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 library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + +// comp_ellint_2 + + +// Compare against values generated by the GNU Scientific Library. +// The GSL can be found on the web: http://www.gnu.org/software/gsl/ + +#include <tr1/cmath> +#if defined(__TEST_DEBUG) +#include <iostream> +#define VERIFY(A) \ +if (!(A)) \ + { \ + std::cout << "line " << __LINE__ \ + << " max_abs_frac = " << max_abs_frac \ + << std::endl; \ + } +#else +#include <testsuite_hooks.h> +#endif +#include "../testcase.h" + + +// Test data. +testcase_comp_ellint_2<double> data001[] = { + { 1.1716970527816140, -0.90000000000000002 }, + { 1.2763499431699066, -0.80000000000000004 }, + { 1.3556611355719557, -0.69999999999999996 }, + { 1.4180833944487243, -0.59999999999999998 }, + { 1.4674622093394274, -0.50000000000000000 }, + { 1.5059416123600402, -0.40000000000000002 }, + { 1.5348334649232489, -0.30000000000000004 }, + { 1.5549685462425296, -0.19999999999999996 }, + { 1.5668619420216685, -0.099999999999999978 }, + { 1.5707963267948966, 0.0000000000000000 }, + { 1.5668619420216685, 0.10000000000000009 }, + { 1.5549685462425296, 0.19999999999999996 }, + { 1.5348334649232489, 0.30000000000000004 }, + { 1.5059416123600404, 0.39999999999999991 }, + { 1.4674622093394274, 0.50000000000000000 }, + { 1.4180833944487241, 0.60000000000000009 }, + { 1.3556611355719557, 0.69999999999999996 }, + { 1.2763499431699066, 0.80000000000000004 }, + { 1.1716970527816142, 0.89999999999999991 }, +}; + +// Test function. +template <typename Tp> +void test001() +{ + const Tp eps = std::numeric_limits<Tp>::epsilon(); + Tp max_abs_diff = -Tp(1); + Tp max_abs_frac = -Tp(1); + unsigned int num_datum = sizeof(data001) + / sizeof(testcase_comp_ellint_2<double>); + for (unsigned int i = 0; i < num_datum; ++i) + { + const Tp f = std::tr1::comp_ellint_2(Tp(data001[i].k)); + const Tp f0 = data001[i].f0; + const Tp diff = f - f0; + if (std::abs(diff) > max_abs_diff) + max_abs_diff = std::abs(diff); + if (std::abs(f0) > Tp(10) * eps + && std::abs(f) > Tp(10) * eps) + { + const Tp frac = diff / f0; + if (std::abs(frac) > max_abs_frac) + max_abs_frac = std::abs(frac); + } + } + VERIFY(max_abs_frac < Tp(5.0000000000000039e-13)); +} + +int main(int, char**) +{ + test001<double>(); + return 0; +} |