diff options
9 files changed, 541 insertions, 1 deletions
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index 122c5c6..4c348f1 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,3 +1,14 @@ +2017-11-18 Edward Smith-Rowland <3dw4rd@verizon.net> + Expose Airy functions as an extenaion. + * include/bits/specfun.h: Expose airy_ai and airy_bi. + * include/tr1/modified_bessel_func.tcc: Treat NaN and inf arg, return. + * testsuite/ext/special_functions/airy_ai/check_nan.cc: New. + * testsuite/ext/special_functions/airy_ai/check_value.cc: New. + * testsuite/ext/special_functions/airy_ai/compile.cc: New. + * testsuite/ext/special_functions/airy_bi/check_nan.cc: New. + * testsuite/ext/special_functions/airy_bi/check_value.cc: New. + * testsuite/ext/special_functions/airy_bi/compile.cc: New. + 2017-11-17 Igor Tsimbalist <igor.v.tsimbalist@intel.com> * acinclude.m4: Add cet.m4. diff --git a/libstdc++-v3/include/bits/specfun.h b/libstdc++-v3/include/bits/specfun.h index 6bb3ec0..93ba8fa 100644 --- a/libstdc++-v3/include/bits/specfun.h +++ b/libstdc++-v3/include/bits/specfun.h @@ -1206,6 +1206,78 @@ namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) { _GLIBCXX_BEGIN_NAMESPACE_VERSION + // Airy functions + + /** + * Return the Airy function @f$ Ai(x) @f$ of @c float argument x. + */ + inline float + airy_aif(float __x) + { + float __Ai, __Bi, __Aip, __Bip; + std::__detail::__airy<float>(__x, __Ai, __Bi, __Aip, __Bip); + return __Ai; + } + + /** + * Return the Airy function @f$ Ai(x) @f$ of <tt>long double</tt> argument x. + */ + inline long double + airy_ail(long double __x) + { + long double __Ai, __Bi, __Aip, __Bip; + std::__detail::__airy<long double>(__x, __Ai, __Bi, __Aip, __Bip); + return __Ai; + } + + /** + * Return the Airy function @f$ Ai(x) @f$ of real argument x. + */ + template<typename _Tp> + inline typename __gnu_cxx::__promote<_Tp>::__type + airy_ai(_Tp __x) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; + __type __Ai, __Bi, __Aip, __Bip; + std::__detail::__airy<__type>(__x, __Ai, __Bi, __Aip, __Bip); + return __Ai; + } + + /** + * Return the Airy function @f$ Bi(x) @f$ of @c float argument x. + */ + inline float + airy_bif(float __x) + { + float __Ai, __Bi, __Aip, __Bip; + std::__detail::__airy<float>(__x, __Ai, __Bi, __Aip, __Bip); + return __Bi; + } + + /** + * Return the Airy function @f$ Bi(x) @f$ of <tt>long double</tt> argument x. + */ + inline long double + airy_bil(long double __x) + { + long double __Ai, __Bi, __Aip, __Bip; + std::__detail::__airy<long double>(__x, __Ai, __Bi, __Aip, __Bip); + return __Bi; + } + + /** + * Return the Airy function @f$ Bi(x) @f$ of real argument x. + */ + template<typename _Tp> + inline typename __gnu_cxx::__promote<_Tp>::__type + airy_bi(_Tp __x) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; + __type __Ai, __Bi, __Aip, __Bip; + std::__detail::__airy<__type>(__x, __Ai, __Bi, __Aip, __Bip); + return __Bi; + } + // Confluent hypergeometric functions /** diff --git a/libstdc++-v3/include/tr1/modified_bessel_func.tcc b/libstdc++-v3/include/tr1/modified_bessel_func.tcc index 79d7d75..3910b95 100644 --- a/libstdc++-v3/include/tr1/modified_bessel_func.tcc +++ b/libstdc++-v3/include/tr1/modified_bessel_func.tcc @@ -377,8 +377,19 @@ namespace tr1 const _Tp __absx = std::abs(__x); const _Tp __rootx = std::sqrt(__absx); const _Tp __z = _Tp(2) * __absx * __rootx / _Tp(3); + const _Tp _S_NaN = std::numeric_limits<_Tp>::quiet_NaN(); + const _Tp _S_inf = std::numeric_limits<_Tp>::infinity(); - if (__x > _Tp(0)) + if (__isnan(__x)) + __Bip = __Aip = __Bi = __Ai = std::numeric_limits<_Tp>::quiet_NaN(); + else if (__z == _S_inf) + { + __Aip = __Ai = _Tp{0}; + __Bip = __Bi = _S_inf; + } + else if (__z == -_S_inf) + __Bip = __Aip = __Bi = __Ai = _Tp{0}; + else if (__x > _Tp(0)) { _Tp __I_nu, __Ip_nu, __K_nu, __Kp_nu; diff --git a/libstdc++-v3/testsuite/ext/special_functions/airy_ai/check_nan.cc b/libstdc++-v3/testsuite/ext/special_functions/airy_ai/check_nan.cc new file mode 100644 index 0000000..883af54 --- /dev/null +++ b/libstdc++-v3/testsuite/ext/special_functions/airy_ai/check_nan.cc @@ -0,0 +1,57 @@ +// { dg-do run { target c++11 } } +// { dg-require-c-std "" } +// { dg-add-options ieee } +// { dg-options "-D__STDCPP_WANT_MATH_SPEC_FUNCS__" } + +// Copyright (C) 2016-2017 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/>. + +// airy_ai + +#include <cmath> +#include <testsuite_hooks.h> + +void +test01() +{ + float xf = std::numeric_limits<float>::quiet_NaN(); + double xd = std::numeric_limits<double>::quiet_NaN(); + long double xl = std::numeric_limits<long double>::quiet_NaN(); + + float a = __gnu_cxx::airy_ai(xf); + float b = __gnu_cxx::airy_aif(xf); + double c = __gnu_cxx::airy_ai(xd); + long double d = __gnu_cxx::airy_ai(xl); + long double e = __gnu_cxx::airy_ail(xl); + + bool test [[gnu::unused]] = true; + VERIFY(std::isnan(a)); + VERIFY(std::isnan(b)); + VERIFY(std::isnan(c)); + VERIFY(std::isnan(d)); + VERIFY(std::isnan(e)); + + return; +} + +int +main() +{ + test01(); + return 0; +} + diff --git a/libstdc++-v3/testsuite/ext/special_functions/airy_ai/check_value.cc b/libstdc++-v3/testsuite/ext/special_functions/airy_ai/check_value.cc new file mode 100644 index 0000000..10f2f7c --- /dev/null +++ b/libstdc++-v3/testsuite/ext/special_functions/airy_ai/check_value.cc @@ -0,0 +1,126 @@ +// { dg-do run { target c++11 } } +// { dg-options "-D__STDCPP_WANT_MATH_SPEC_FUNCS__" } +// +// Copyright (C) 2016-2017 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/>. + +// airy_ai + +// Compare against values generated by the GNU Scientific Library. +// The GSL can be found on the web: http://www.gnu.org/software/gsl/ +#include <limits> +#include <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 <specfun_testcase.h> + +// Test data. +// max(|f - f_GSL|): 2.0261570199409107e-15 at index 0 +// max(|f - f_GSL| / |f_GSL|): 5.7527019513802774e-14 +// mean(f - f_GSL): 5.7893945880945940e-17 +// variance(f - f_GSL): 8.5887539970087062e-35 +// stddev(f - f_GSL): 9.2675530734971811e-18 +const testcase_airy_ai<double> +data001[41] = +{ + { 0.040241238486444071, -10.000000000000000, 0.0 }, + { 0.31910324771912801, -9.5000000000000000, 0.0 }, + { -0.022133721547341240, -9.0000000000000000, 0.0 }, + { -0.33029023763020882, -8.5000000000000000, 0.0 }, + { -0.052705050356385910, -8.0000000000000000, 0.0 }, + { 0.32177571638064789, -7.5000000000000000, 0.0 }, + { 0.18428083525050609, -7.0000000000000000, 0.0 }, + { -0.23802030199711663, -6.5000000000000000, 0.0 }, + { -0.32914517362982321, -6.0000000000000000, 0.0 }, + { 0.017781541276574383, -5.5000000000000000, 0.0 }, + { 0.35076100902411411, -5.0000000000000000, 0.0 }, + { 0.29215278105595921, -4.5000000000000000, 0.0 }, + { -0.070265532949289680, -4.0000000000000000, 0.0 }, + { -0.37553382314043182, -3.5000000000000000, 0.0 }, + { -0.37881429367765823, -3.0000000000000000, 0.0 }, + { -0.11232506769296607, -2.5000000000000000, 0.0 }, + { 0.22740742820168561, -2.0000000000000000, 0.0 }, + { 0.46425657774886947, -1.5000000000000000, 0.0 }, + { 0.53556088329235207, -1.0000000000000000, 0.0 }, + { 0.47572809161053958, -0.50000000000000000, 0.0 }, + { 0.35502805388781722, 0.0000000000000000, 0.0 }, + { 0.23169360648083348, 0.50000000000000000, 0.0 }, + { 0.13529241631288141, 1.0000000000000000, 0.0 }, + { 0.071749497008105428, 1.5000000000000000, 0.0 }, + { 0.034924130423274372, 2.0000000000000000, 0.0 }, + { 0.015725923380470481, 2.5000000000000000, 0.0 }, + { 0.0065911393574607175, 3.0000000000000000, 0.0 }, + { 0.0025840987869896349, 3.5000000000000000, 0.0 }, + { 0.00095156385120480195, 4.0000000000000000, 0.0 }, + { 0.00033025032351430934, 4.5000000000000000, 0.0 }, + { 0.00010834442813607434, 5.0000000000000000, 0.0 }, + { 3.3685311908599812e-05, 5.5000000000000000, 0.0 }, + { 9.9476943602528973e-06, 6.0000000000000000, 0.0 }, + { 2.7958823432049148e-06, 6.5000000000000000, 0.0 }, + { 7.4921288639971570e-07, 7.0000000000000000, 0.0 }, + { 1.9172560675134295e-07, 7.5000000000000000, 0.0 }, + { 4.6922076160992236e-08, 8.0000000000000000, 0.0 }, + { 1.0997009755195515e-08, 8.5000000000000000, 0.0 }, + { 2.4711684308724904e-09, 9.0000000000000000, 0.0 }, + { 5.3302637046174900e-10, 9.5000000000000000, 0.0 }, + { 1.1047532552898652e-10, 10.000000000000000, 0.0 }, +}; +const double toler001 = 5.0000000000000029e-12; + +template<typename Ret, unsigned int Num> + void + test(const testcase_airy_ai<Ret> (&data)[Num], Ret toler) + { + bool test __attribute__((unused)) = true; + const Ret eps = std::numeric_limits<Ret>::epsilon(); + Ret max_abs_diff = -Ret(1); + Ret max_abs_frac = -Ret(1); + unsigned int num_datum = Num; + for (unsigned int i = 0; i < num_datum; ++i) + { + const Ret f = __gnu_cxx::airy_ai(data[i].x); + const Ret f0 = data[i].f0; + const Ret diff = f - f0; + if (std::abs(diff) > max_abs_diff) + max_abs_diff = std::abs(diff); + if (std::abs(f0) > Ret(10) * eps + && std::abs(f) > Ret(10) * eps) + { + const Ret frac = diff / f0; + if (std::abs(frac) > max_abs_frac) + max_abs_frac = std::abs(frac); + } + } + VERIFY(max_abs_frac < toler); + } + +int +main() +{ + test(data001, toler001); + return 0; +} diff --git a/libstdc++-v3/testsuite/ext/special_functions/airy_ai/compile.cc b/libstdc++-v3/testsuite/ext/special_functions/airy_ai/compile.cc new file mode 100644 index 0000000..ecd17df --- /dev/null +++ b/libstdc++-v3/testsuite/ext/special_functions/airy_ai/compile.cc @@ -0,0 +1,40 @@ +// { dg-do compile { target c++11 } } +// { dg-options "-D__STDCPP_WANT_MATH_SPEC_FUNCS__" } + +// Copyright (C) 2016-2017 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/>. + +// airy_ai + +#include <cmath> + +void +test01() +{ + float xf = 0.5F; + double xd = 0.5; + long double xl = 0.5L; + + __gnu_cxx::airy_ai(xf); + __gnu_cxx::airy_aif(xf); + __gnu_cxx::airy_ai(xd); + __gnu_cxx::airy_ai(xl); + __gnu_cxx::airy_ail(xl); + + return; +} + diff --git a/libstdc++-v3/testsuite/ext/special_functions/airy_bi/check_nan.cc b/libstdc++-v3/testsuite/ext/special_functions/airy_bi/check_nan.cc new file mode 100644 index 0000000..b0bed0b --- /dev/null +++ b/libstdc++-v3/testsuite/ext/special_functions/airy_bi/check_nan.cc @@ -0,0 +1,57 @@ +// { dg-do run { target c++11 } } +// { dg-require-c-std "" } +// { dg-add-options ieee } +// { dg-options "-D__STDCPP_WANT_MATH_SPEC_FUNCS__" } + +// Copyright (C) 2016-2017 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/>. + +// airy_bi + +#include <cmath> +#include <testsuite_hooks.h> + +void +test01() +{ + float xf = std::numeric_limits<float>::quiet_NaN(); + double xd = std::numeric_limits<double>::quiet_NaN(); + long double xl = std::numeric_limits<long double>::quiet_NaN(); + + float a = __gnu_cxx::airy_bi(xf); + float b = __gnu_cxx::airy_bif(xf); + double c = __gnu_cxx::airy_bi(xd); + long double d = __gnu_cxx::airy_bi(xl); + long double e = __gnu_cxx::airy_bil(xl); + + bool test [[gnu::unused]] = true; + VERIFY(std::isnan(a)); + VERIFY(std::isnan(b)); + VERIFY(std::isnan(c)); + VERIFY(std::isnan(d)); + VERIFY(std::isnan(e)); + + return; +} + +int +main() +{ + test01(); + return 0; +} + diff --git a/libstdc++-v3/testsuite/ext/special_functions/airy_bi/check_value.cc b/libstdc++-v3/testsuite/ext/special_functions/airy_bi/check_value.cc new file mode 100644 index 0000000..0974003 --- /dev/null +++ b/libstdc++-v3/testsuite/ext/special_functions/airy_bi/check_value.cc @@ -0,0 +1,126 @@ +// { dg-do run { target c++11 } } +// { dg-options "-D__STDCPP_WANT_MATH_SPEC_FUNCS__" } +// +// Copyright (C) 2016-2017 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/>. + +// airy_bi + +// Compare against values generated by the GNU Scientific Library. +// The GSL can be found on the web: http://www.gnu.org/software/gsl/ +#include <limits> +#include <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 <specfun_testcase.h> + +// Test data. +// max(|f - f_GSL|): 3.2782554626464844e-06 at index 40 +// max(|f - f_GSL| / |f_GSL|): 1.3623770134694109e-13 +// mean(f - f_GSL): -8.0102555317125191e-08 +// variance(f - f_GSL): 2.6209716422814286e-13 +// stddev(f - f_GSL): 5.1195425989842373e-07 +const testcase_airy_bi<double> +data001[41] = +{ + { -0.31467982964383845, -10.000000000000000, 0.0 }, + { 0.037785432489467467, -9.5000000000000000, 0.0 }, + { 0.32494732345524480, -9.0000000000000000, 0.0 }, + { 0.0077544364476580746, -8.5000000000000000, 0.0 }, + { -0.33125158075113792, -8.0000000000000000, 0.0 }, + { -0.11246348507649087, -7.5000000000000000, 0.0 }, + { 0.29376207185441372, -7.0000000000000000, 0.0 }, + { 0.26101265763648318, -6.5000000000000000, 0.0 }, + { -0.14669837667055663, -6.0000000000000000, 0.0 }, + { -0.36781345391571185, -5.5000000000000000, 0.0 }, + { -0.13836913490160088, -5.0000000000000000, 0.0 }, + { 0.25387265769693296, -4.5000000000000000, 0.0 }, + { 0.39223470570699931, -4.0000000000000000, 0.0 }, + { 0.16893983748105870, -3.5000000000000000, 0.0 }, + { -0.19828962637492650, -3.0000000000000000, 0.0 }, + { -0.43242247184070520, -2.5000000000000000, 0.0 }, + { -0.41230258795639835, -2.0000000000000000, 0.0 }, + { -0.19178486115704119, -1.5000000000000000, 0.0 }, + { 0.10399738949694459, -1.0000000000000000, 0.0 }, + { 0.38035265975105381, -0.50000000000000000, 0.0 }, + { 0.61492662744600068, 0.0000000000000000, 0.0 }, + { 0.85427704310315555, 0.50000000000000000, 0.0 }, + { 1.2074235949528713, 1.0000000000000000, 0.0 }, + { 1.8789415037478949, 1.5000000000000000, 0.0 }, + { 3.2980949999782148, 2.0000000000000000, 0.0 }, + { 6.4816607384605804, 2.5000000000000000, 0.0 }, + { 14.037328963730236, 3.0000000000000000, 0.0 }, + { 33.055506754611478, 3.5000000000000000, 0.0 }, + { 83.847071408468111, 4.0000000000000000, 0.0 }, + { 227.58808183559950, 4.5000000000000000, 0.0 }, + { 657.79204417117160, 5.0000000000000000, 0.0 }, + { 2016.5800386595315, 5.5000000000000000, 0.0 }, + { 6536.4461048098583, 6.0000000000000000, 0.0 }, + { 22340.607718396990, 6.5000000000000000, 0.0 }, + { 80327.790709430337, 7.0000000000000000, 0.0 }, + { 303229.61511253362, 7.5000000000000000, 0.0 }, + { 1199586.0041244617, 8.0000000000000000, 0.0 }, + { 4965319.5414712988, 8.5000000000000000, 0.0 }, + { 21472868.891435351, 9.0000000000000000, 0.0 }, + { 96892265.580451161, 9.5000000000000000, 0.0 }, + { 455641153.54822654, 10.000000000000000, 0.0 }, +}; +const double toler001 = 1.0000000000000006e-11; + +template<typename Ret, unsigned int Num> + void + test(const testcase_airy_bi<Ret> (&data)[Num], Ret toler) + { + bool test __attribute__((unused)) = true; + const Ret eps = std::numeric_limits<Ret>::epsilon(); + Ret max_abs_diff = -Ret(1); + Ret max_abs_frac = -Ret(1); + unsigned int num_datum = Num; + for (unsigned int i = 0; i < num_datum; ++i) + { + const Ret f = __gnu_cxx::airy_bi(data[i].x); + const Ret f0 = data[i].f0; + const Ret diff = f - f0; + if (std::abs(diff) > max_abs_diff) + max_abs_diff = std::abs(diff); + if (std::abs(f0) > Ret(10) * eps + && std::abs(f) > Ret(10) * eps) + { + const Ret frac = diff / f0; + if (std::abs(frac) > max_abs_frac) + max_abs_frac = std::abs(frac); + } + } + VERIFY(max_abs_frac < toler); + } + +int +main() +{ + test(data001, toler001); + return 0; +} diff --git a/libstdc++-v3/testsuite/ext/special_functions/airy_bi/compile.cc b/libstdc++-v3/testsuite/ext/special_functions/airy_bi/compile.cc new file mode 100644 index 0000000..0dd36e0 --- /dev/null +++ b/libstdc++-v3/testsuite/ext/special_functions/airy_bi/compile.cc @@ -0,0 +1,40 @@ +// { dg-do compile { target c++11 } } +// { dg-options "-D__STDCPP_WANT_MATH_SPEC_FUNCS__" } + +// Copyright (C) 2016-2017 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/>. + +// airy_bi + +#include <cmath> + +void +test01() +{ + float xf = 0.5F; + double xd = 0.5; + long double xl = 0.5L; + + __gnu_cxx::airy_bi(xf); + __gnu_cxx::airy_bif(xf); + __gnu_cxx::airy_bi(xd); + __gnu_cxx::airy_bi(xl); + __gnu_cxx::airy_bil(xl); + + return; +} + |