X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=libstdc%2B%2B-v3%2Ftestsuite%2Ftr1%2F5_numerical_facilities%2Fspecial_functions%2F05_comp_ellint_2%2Fcheck_value.cc;fp=libstdc%2B%2B-v3%2Ftestsuite%2Ftr1%2F5_numerical_facilities%2Fspecial_functions%2F05_comp_ellint_2%2Fcheck_value.cc;h=8cd04228c4a2641727b906cdfe1f85c6c93751c6;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=0000000000000000000000000000000000000000;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git 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 00000000..8cd04228 --- /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 +// . + +// 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 +#if defined(__TEST_DEBUG) +#include +#define VERIFY(A) \ +if (!(A)) \ + { \ + std::cout << "line " << __LINE__ \ + << " max_abs_frac = " << max_abs_frac \ + << std::endl; \ + } +#else +#include +#endif +#include "../testcase.h" + + +// Test data. +testcase_comp_ellint_2 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 +void test001() +{ + const Tp eps = std::numeric_limits::epsilon(); + Tp max_abs_diff = -Tp(1); + Tp max_abs_frac = -Tp(1); + unsigned int num_datum = sizeof(data001) + / sizeof(testcase_comp_ellint_2); + 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(); + return 0; +}