]>
Commit | Line | Data |
---|---|---|
1 | /* Copyright (C) 2011-2018 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 | #include <math-svid-compat.h> | |
23 | #include <libm-alias-double.h> | |
24 | ||
25 | ||
26 | #if LIBM_SVID_COMPAT | |
27 | /* wrapper jn */ | |
28 | double | |
29 | __jn (int n, double x) | |
30 | { | |
31 | if (__builtin_expect (isgreater (fabs (x), X_TLOSS), 0) | |
32 | && _LIB_VERSION != _IEEE_ && _LIB_VERSION != _POSIX_) | |
33 | /* jn(n,|x|>X_TLOSS) */ | |
34 | return __kernel_standard (n, x, 38); | |
35 | ||
36 | return __ieee754_jn (n, x); | |
37 | } | |
38 | libm_alias_double (__jn, jn) | |
39 | ||
40 | ||
41 | /* wrapper yn */ | |
42 | double | |
43 | __yn (int n, double x) | |
44 | { | |
45 | if (__builtin_expect (islessequal (x, 0.0) || isgreater (x, X_TLOSS), 0) | |
46 | && _LIB_VERSION != _IEEE_) | |
47 | { | |
48 | if (x < 0.0) | |
49 | { | |
50 | /* d = zero/(x-x) */ | |
51 | __feraiseexcept (FE_INVALID); | |
52 | return __kernel_standard (n, x, 13); | |
53 | } | |
54 | else if (x == 0.0) | |
55 | { | |
56 | /* d = -one/(x-x) */ | |
57 | __feraiseexcept (FE_DIVBYZERO); | |
58 | return __kernel_standard (n, x, 12); | |
59 | } | |
60 | else if (_LIB_VERSION != _POSIX_) | |
61 | /* yn(n,x>X_TLOSS) */ | |
62 | return __kernel_standard (n, x, 39); | |
63 | } | |
64 | ||
65 | return __ieee754_yn (n, x); | |
66 | } | |
67 | libm_alias_double (__yn, yn) | |
68 | #endif |