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bfff8b1b | 1 | /* Copyright (C) 2011-2017 Free Software Foundation, Inc. |
0ac5ae23 UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Ulrich Drepper <drepper@gmail.com>, 2011. | |
f7eac6eb | 4 | |
0ac5ae23 UD |
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. | |
f7eac6eb | 14 | |
0ac5ae23 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
f7eac6eb | 18 | |
0ac5ae23 | 19 | #include <fenv.h> |
9d13fb24 | 20 | #include <math.h> |
9277c064 | 21 | #include <math_private.h> |
f7eac6eb | 22 | |
0ac5ae23 UD |
23 | |
24 | /* wrapper j0 */ | |
25 | double | |
26 | j0 (double x) | |
f7eac6eb | 27 | { |
92221550 | 28 | if (__builtin_expect (isgreater (fabs (x), X_TLOSS), 0) |
c36e1d23 | 29 | && _LIB_VERSION != _IEEE_ && _LIB_VERSION != _POSIX_) |
0ac5ae23 UD |
30 | /* j0(|x|>X_TLOSS) */ |
31 | return __kernel_standard (x, x, 34); | |
32 | ||
33 | return __ieee754_j0 (x); | |
f7eac6eb | 34 | } |
cccda09f | 35 | #ifdef NO_LONG_DOUBLE |
b638f96a | 36 | weak_alias (j0, j0l) |
cccda09f UD |
37 | #endif |
38 | ||
f7eac6eb | 39 | |
0ac5ae23 UD |
40 | /* wrapper y0 */ |
41 | double | |
42 | y0 (double x) | |
f7eac6eb | 43 | { |
92221550 AJ |
44 | if (__builtin_expect (islessequal (x, 0.0) || isgreater (x, X_TLOSS), 0) |
45 | && _LIB_VERSION != _IEEE_) | |
0ac5ae23 UD |
46 | { |
47 | if (x < 0.0) | |
48 | { | |
49 | /* d = zero/(x-x) */ | |
0747f818 | 50 | __feraiseexcept (FE_INVALID); |
0ac5ae23 UD |
51 | return __kernel_standard (x, x, 9); |
52 | } | |
53 | else if (x == 0.0) | |
699ff837 JM |
54 | { |
55 | /* d = -one/(x-x) */ | |
0747f818 | 56 | __feraiseexcept (FE_DIVBYZERO); |
699ff837 JM |
57 | return __kernel_standard (x, x, 8); |
58 | } | |
c36e1d23 | 59 | else if (_LIB_VERSION != _POSIX_) |
0ac5ae23 UD |
60 | /* y0(x>X_TLOSS) */ |
61 | return __kernel_standard (x, x, 35); | |
62 | } | |
63 | ||
64 | return __ieee754_y0 (x); | |
f7eac6eb | 65 | } |
cccda09f | 66 | #ifdef NO_LONG_DOUBLE |
b638f96a | 67 | weak_alias (y0, y0l) |
cccda09f | 68 | #endif |