diff options
Diffstat (limited to 'REORG.TODO/math/w_j0_compat.c')
-rw-r--r-- | REORG.TODO/math/w_j0_compat.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/REORG.TODO/math/w_j0_compat.c b/REORG.TODO/math/w_j0_compat.c new file mode 100644 index 0000000000..e7b56f2412 --- /dev/null +++ b/REORG.TODO/math/w_j0_compat.c @@ -0,0 +1,68 @@ +/* Copyright (C) 2011-2017 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 j0 */ +double +j0 (double x) +{ + if (__builtin_expect (isgreater (fabs (x), X_TLOSS), 0) + && _LIB_VERSION != _IEEE_ && _LIB_VERSION != _POSIX_) + /* j0(|x|>X_TLOSS) */ + return __kernel_standard (x, x, 34); + + return __ieee754_j0 (x); +} +#ifdef NO_LONG_DOUBLE +weak_alias (j0, j0l) +#endif + + +/* wrapper y0 */ +double +y0 (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 (x, x, 9); + } + else if (x == 0.0) + { + /* d = -one/(x-x) */ + __feraiseexcept (FE_DIVBYZERO); + return __kernel_standard (x, x, 8); + } + else if (_LIB_VERSION != _POSIX_) + /* y0(x>X_TLOSS) */ + return __kernel_standard (x, x, 35); + } + + return __ieee754_y0 (x); +} +#ifdef NO_LONG_DOUBLE +weak_alias (y0, y0l) +#endif |