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.
4
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.
9
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.
14
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/>. */
18
19#include <fenv.h>
20#include <math.h>
21#include <math_private.h>
22
23
24/* wrapper j1 */
25double
26j1 (double x)
27{
28 if (__builtin_expect (isgreater (fabs (x), X_TLOSS), 0)
29 && _LIB_VERSION != _IEEE_ && _LIB_VERSION != _POSIX_)
30 /* j1(|x|>X_TLOSS) */
31 return __kernel_standard (x, x, 36);
32
33 return __ieee754_j1 (x);
34}
35#ifdef NO_LONG_DOUBLE
36weak_alias (j1, j1l)
37#endif
38
39
40/* wrapper y1 */
41double
42y1 (double x)
43{
44 if (__builtin_expect (islessequal (x, 0.0) || isgreater (x, X_TLOSS), 0)
45 && _LIB_VERSION != _IEEE_)
46 {
47 if (x < 0.0)
48 {
49 /* d = zero/(x-x) */
50 __feraiseexcept (FE_INVALID);
51 return __kernel_standard (x, x, 11);
52 }
53 else if (x == 0.0)
54 {
55 /* d = -one/(x-x) */
56 __feraiseexcept (FE_DIVBYZERO);
57 return __kernel_standard (x, x, 10);
58 }
59 else if (_LIB_VERSION != _POSIX_)
60 /* y1(x>X_TLOSS) */
61 return __kernel_standard (x, x, 37);
62 }
63
64 return __ieee754_y1 (x);
65}
66#ifdef NO_LONG_DOUBLE
67weak_alias (y1, y1l)
68#endif
69