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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> |
813378e9 | 22 | #include <math-svid-compat.h> |
f7eac6eb | 23 | |
0ac5ae23 | 24 | |
4f3647e4 | 25 | #if LIBM_SVID_COMPAT |
0ac5ae23 UD |
26 | /* wrapper j0 */ |
27 | double | |
28 | j0 (double x) | |
f7eac6eb | 29 | { |
92221550 | 30 | if (__builtin_expect (isgreater (fabs (x), X_TLOSS), 0) |
c36e1d23 | 31 | && _LIB_VERSION != _IEEE_ && _LIB_VERSION != _POSIX_) |
0ac5ae23 UD |
32 | /* j0(|x|>X_TLOSS) */ |
33 | return __kernel_standard (x, x, 34); | |
34 | ||
35 | return __ieee754_j0 (x); | |
f7eac6eb | 36 | } |
4f3647e4 | 37 | # ifdef NO_LONG_DOUBLE |
b638f96a | 38 | weak_alias (j0, j0l) |
4f3647e4 | 39 | # endif |
cccda09f | 40 | |
f7eac6eb | 41 | |
0ac5ae23 UD |
42 | /* wrapper y0 */ |
43 | double | |
44 | y0 (double x) | |
f7eac6eb | 45 | { |
92221550 AJ |
46 | if (__builtin_expect (islessequal (x, 0.0) || isgreater (x, X_TLOSS), 0) |
47 | && _LIB_VERSION != _IEEE_) | |
0ac5ae23 UD |
48 | { |
49 | if (x < 0.0) | |
50 | { | |
51 | /* d = zero/(x-x) */ | |
0747f818 | 52 | __feraiseexcept (FE_INVALID); |
0ac5ae23 UD |
53 | return __kernel_standard (x, x, 9); |
54 | } | |
55 | else if (x == 0.0) | |
699ff837 JM |
56 | { |
57 | /* d = -one/(x-x) */ | |
0747f818 | 58 | __feraiseexcept (FE_DIVBYZERO); |
699ff837 JM |
59 | return __kernel_standard (x, x, 8); |
60 | } | |
c36e1d23 | 61 | else if (_LIB_VERSION != _POSIX_) |
0ac5ae23 UD |
62 | /* y0(x>X_TLOSS) */ |
63 | return __kernel_standard (x, x, 35); | |
64 | } | |
65 | ||
66 | return __ieee754_y0 (x); | |
f7eac6eb | 67 | } |
4f3647e4 | 68 | # ifdef NO_LONG_DOUBLE |
b638f96a | 69 | weak_alias (y0, y0l) |
4f3647e4 | 70 | # endif |
cccda09f | 71 | #endif |