or1k: remove unused file
[uclibc-ng.git] / libm / w_j0.c
blob291db88235dd44acd67eeb3b7a09c37cc78a0240
1 /* Copyright (C) 2011-2016 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@gmail.com>, 2011.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
19 #include <math.h>
20 #include "math_private.h"
21 #if __UCLIBC_HAS_FENV__
22 #include <fenv.h>
23 #endif
24 /* wrapper j0 */
25 double
26 j0 (double x)
28 #if __UCLIBC_HAS_FENV__
29 if (__builtin_expect (isgreater (fabs (x), X_TLOSS), 0)
30 && _LIB_VERSION != _IEEE_ && _LIB_VERSION != _POSIX_)
31 /* j0(|x|>X_TLOSS) */
32 return __kernel_standard (x, x, 34);
33 #endif /* __UCLIBC_HAS_FENV__ */
34 return __ieee754_j0 (x);
37 /* wrapper y0 */
38 double
39 y0 (double x)
41 #if __UCLIBC_HAS_FENV__
42 if (__builtin_expect (islessequal (x, 0.0) || isgreater (x, X_TLOSS), 0)
43 && _LIB_VERSION != _IEEE_)
45 if (x < 0.0)
47 /* d = zero/(x-x) */
48 feraiseexcept (FE_INVALID);
49 return __kernel_standard (x, x, 9);
51 else if (x == 0.0)
53 /* d = -one/(x-x) */
54 feraiseexcept (FE_DIVBYZERO);
55 return __kernel_standard (x, x, 8);
57 else if (_LIB_VERSION != _POSIX_)
58 /* y0(x>X_TLOSS) */
59 return __kernel_standard (x, x, 35);
61 #endif /* __UCLIBC_HAS_FENV__ */
62 return __ieee754_y0 (x);