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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc3/] [libstdc++-v3/] [testsuite/] [tr1/] [5_numerical_facilities/] [special_functions/] [04_comp_ellint_1/] [check_value.cc] - Rev 516
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// 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_1 // 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_1<double> data001[] = { { 2.2805491384227703, -0.90000000000000002 }, { 1.9953027776647296, -0.80000000000000004 }, { 1.8456939983747236, -0.69999999999999996 }, { 1.7507538029157526, -0.59999999999999998 }, { 1.6857503548125963, -0.50000000000000000 }, { 1.6399998658645112, -0.40000000000000002 }, { 1.6080486199305126, -0.30000000000000004 }, { 1.5868678474541664, -0.19999999999999996 }, { 1.5747455615173562, -0.099999999999999978 }, { 1.5707963267948966, 0.0000000000000000 }, { 1.5747455615173562, 0.10000000000000009 }, { 1.5868678474541664, 0.19999999999999996 }, { 1.6080486199305126, 0.30000000000000004 }, { 1.6399998658645112, 0.39999999999999991 }, { 1.6857503548125963, 0.50000000000000000 }, { 1.7507538029157526, 0.60000000000000009 }, { 1.8456939983747236, 0.69999999999999996 }, { 1.9953027776647296, 0.80000000000000004 }, { 2.2805491384227699, 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_1<double>); for (unsigned int i = 0; i < num_datum; ++i) { const Tp f = std::tr1::comp_ellint_1(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(2.5000000000000020e-13)); } int main(int, char**) { test001<double>(); return 0; }