diff options
Diffstat (limited to 'math/w_j0f_compat.c')
| -rw-r--r-- | math/w_j0f_compat.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/math/w_j0f_compat.c b/math/w_j0f_compat.c new file mode 100644 index 0000000000..34220b90b8 --- /dev/null +++ b/math/w_j0f_compat.c @@ -0,0 +1,63 @@ +/* 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 j0f */ +float +j0f (float x) +{ + if (__builtin_expect (isgreater (fabsf (x), (float) X_TLOSS), 0) + && _LIB_VERSION != _IEEE_ && _LIB_VERSION != _POSIX_) + /* j0(|x|>X_TLOSS) */ + return __kernel_standard_f (x, x, 134); + + return __ieee754_j0f (x); +} + + +/* wrapper y0f */ +float +y0f (float x) +{ + if (__builtin_expect (islessequal (x, 0.0f) + || isgreater (x, (float) X_TLOSS), 0) + && _LIB_VERSION != _IEEE_) + { + if (x < 0.0f) + { + /* d = zero/(x-x) */ + feraiseexcept (FE_INVALID); + return __kernel_standard_f (x, x, 109); + } + else if (x == 0.0f) + { + /* d = -one/(x-x) */ + feraiseexcept (FE_DIVBYZERO); + return __kernel_standard_f (x, x, 108); + } + else if (_LIB_VERSION != _POSIX_) + /* y0(x>X_TLOSS) */ + return __kernel_standard_f (x, x, 135); + } + + return __ieee754_y0f (x); +} |