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 <math.h>
20 #include "math_private.h"
21 #if defined(__UCLIBC_HAS_FENV__)
22 #include <fenv.h>
23 #endif
24
25 #ifndef __DO_XSI_MATH__
26 /* wrapper j1f */
27 float
j1f(float x)28 j1f (float x)
29 {
30 # if defined(__UCLIBC_HAS_FENV__)
31 if (__builtin_expect (isgreater (fabsf (x), X_TLOSS), 0)
32 && _LIB_VERSION != _IEEE_ && _LIB_VERSION != _POSIX_)
33 /* j1(|x|>X_TLOSS) */
34 return __kernel_standard_f (x, x, 136);
35 # endif /* __UCLIBC_HAS_FENV__ */
36 return (float) __ieee754_j1 ((double) x);
37 }
38
39
40 /* wrapper y1f */
41 float
y1f(float x)42 y1f (float x)
43 {
44 # if defined(__UCLIBC_HAS_FENV__)
45 if (__builtin_expect (islessequal (x, 0.0f)
46 || isgreater (x, (float) X_TLOSS), 0)
47 && _LIB_VERSION != _IEEE_)
48 {
49 if (x < 0.0f)
50 {
51 /* d = zero/(x-x) */
52 feraiseexcept (FE_INVALID);
53 return __kernel_standard_f (x, x, 111);
54 }
55 else if (x == 0.0f)
56 {
57 /* d = -one/(x-x) */
58 feraiseexcept (FE_DIVBYZERO);
59 return __kernel_standard_f (x, x, 110);
60 }
61 else if (_LIB_VERSION != _POSIX_)
62 /* y1(x>X_TLOSS) */
63 return __kernel_standard_f (x, x, 137);
64 }
65 # endif /* __UCLIBC_HAS_FENV__ */
66 return (float) __ieee754_y1 ((double) x);
67 }
68 #endif /* __DO_XSI_MATH__ */
69