/* Copyright (C) 2011-2020 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 <https://www.gnu.org/licenses/>. */ #include <fenv.h> #include <math.h> #include <math_private.h> #include <math-svid-compat.h> #include <libm-alias-double.h> #if LIBM_SVID_COMPAT /* 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); } libm_alias_double (__jn, jn) /* 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); } libm_alias_double (__yn, yn) #endif