| /* Copyright (C) 2011-2016 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Ulrich Drepper <drepper@gmail.com>, 2011. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <fenv.h> |
| #include <math.h> |
| #include <math_private.h> |
| |
| |
| /* wrapper jn */ |
| double |
| jn (int n, double x) |
| { |
| if (__builtin_expect (isgreater (fabs (x), X_TLOSS), 0) |
| && _LIB_VERSION != _IEEE_ && _LIB_VERSION != _POSIX_) |
| /* jn(n,|x|>X_TLOSS) */ |
| return __kernel_standard (n, x, 38); |
| |
| return __ieee754_jn (n, x); |
| } |
| #ifdef NO_LONG_DOUBLE |
| weak_alias (jn, jnl) |
| #endif |
| |
| |
| /* wrapper yn */ |
| double |
| yn (int n, double x) |
| { |
| if (__builtin_expect (islessequal (x, 0.0) || isgreater (x, X_TLOSS), 0) |
| && _LIB_VERSION != _IEEE_) |
| { |
| if (x < 0.0) |
| { |
| /* d = zero/(x-x) */ |
| __feraiseexcept (FE_INVALID); |
| return __kernel_standard (n, x, 13); |
| } |
| else if (x == 0.0) |
| { |
| /* d = -one/(x-x) */ |
| __feraiseexcept (FE_DIVBYZERO); |
| return __kernel_standard (n, x, 12); |
| } |
| else if (_LIB_VERSION != _POSIX_) |
| /* yn(n,x>X_TLOSS) */ |
| return __kernel_standard (n, x, 39); |
| } |
| |
| return __ieee754_yn (n, x); |
| } |
| #ifdef NO_LONG_DOUBLE |
| weak_alias (yn, ynl) |
| #endif |