]>
git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/tr1/5_numerical_facilities/special_functions/05_comp_ellint_2/check_value.cc
1 // { dg-do run { target c++11 } }
2 // { dg-options "-D__STDCPP_WANT_MATH_SPEC_FUNCS__" }
4 // Copyright (C) 2016-2022 Free Software Foundation, Inc.
6 // This file is part of the GNU ISO C++ Library. This library is free
7 // software; you can redistribute it and/or modify it under the
8 // terms of the GNU General Public License as published by the
9 // Free Software Foundation; either version 3, or (at your option)
12 // This library is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
17 // You should have received a copy of the GNU General Public License along
18 // with this library; see the file COPYING3. If not see
19 // <http://www.gnu.org/licenses/>.
23 // Compare against values generated by the GNU Scientific Library.
24 // The GSL can be found on the web: http://www.gnu.org/software/gsl/
27 #if defined(__TEST_DEBUG)
32 std::cout << "line " << __LINE__ \
33 << " max_abs_frac = " << max_abs_frac \
37 # include <testsuite_hooks.h>
39 #include <specfun_testcase.h>
42 // max(|f - f_Boost|): 1.1102230246251565e-15 at index 13
43 // max(|f - f_Boost| / |f_Boost|): 7.3722846590663481e-16
44 // mean(f - f_Boost): 1.7529837230923525e-16
45 // variance(f - f_Boost): 1.8020397140465364e-33
46 // stddev(f - f_Boost): 4.2450438325729176e-17
47 const testcase_comp_ellint_2
<double>
50 { 1.1716970527816142, -0.90000000000000002, 0.0 },
51 { 1.2763499431699064, -0.80000000000000004, 0.0 },
52 { 1.3556611355719554, -0.69999999999999996, 0.0 },
53 { 1.4180833944487243, -0.59999999999999998, 0.0 },
54 { 1.4674622093394272, -0.50000000000000000, 0.0 },
55 { 1.5059416123600404, -0.39999999999999991, 0.0 },
56 { 1.5348334649232491, -0.29999999999999993, 0.0 },
57 { 1.5549685462425293, -0.19999999999999996, 0.0 },
58 { 1.5668619420216683, -0.099999999999999978, 0.0 },
59 { 1.5707963267948966, 0.0000000000000000, 0.0 },
60 { 1.5668619420216683, 0.10000000000000009, 0.0 },
61 { 1.5549685462425293, 0.20000000000000018, 0.0 },
62 { 1.5348334649232491, 0.30000000000000004, 0.0 },
63 { 1.5059416123600402, 0.40000000000000013, 0.0 },
64 { 1.4674622093394272, 0.50000000000000000, 0.0 },
65 { 1.4180833944487241, 0.60000000000000009, 0.0 },
66 { 1.3556611355719554, 0.70000000000000018, 0.0 },
67 { 1.2763499431699064, 0.80000000000000004, 0.0 },
68 { 1.1716970527816140, 0.90000000000000013, 0.0 },
70 const double toler001
= 2.5000000000000020e-13;
72 template<typename Ret
, unsigned int Num
>
74 test(const testcase_comp_ellint_2
<Ret
> (&data
)[Num
], Ret toler
)
76 bool test
__attribute__((unused
)) = true;
77 const Ret eps
= std::numeric_limits
<Ret
>::epsilon();
78 Ret max_abs_diff
= -Ret(1);
79 Ret max_abs_frac
= -Ret(1);
80 unsigned int num_datum
= Num
;
81 for (unsigned int i
= 0; i
< num_datum
; ++i
)
83 const Ret f
= std::tr1::comp_ellint_2(data
[i
].k
);
84 const Ret f0
= data
[i
].f0
;
85 const Ret diff
= f
- f0
;
86 if (std::abs(diff
) > max_abs_diff
)
87 max_abs_diff
= std::abs(diff
);
88 if (std::abs(f0
) > Ret(10) * eps
89 && std::abs(f
) > Ret(10) * eps
)
91 const Ret frac
= diff
/ f0
;
92 if (std::abs(frac
) > max_abs_frac
)
93 max_abs_frac
= std::abs(frac
);
96 VERIFY(max_abs_frac
< toler
);
102 test(data001
, toler001
);