1 /* Copyright (C) 2011-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 #include <fenv.h>
19 #include <math.h>
20 #include <math_private.h>
21 #include <math-svid-compat.h>
22 #include <libm-alias-float.h>
23
24
25 #if LIBM_SVID_COMPAT
26 /* wrapper jnf */
27 float
__jnf(int n,float x)28 __jnf (int n, float x)
29 {
30 if (__builtin_expect (isgreater (fabsf (x),
31 AS_FLOAT_CONSTANT (X_TLOSS)), 0)
32 && _LIB_VERSION != _IEEE_ && _LIB_VERSION != _POSIX_)
33 /* jn(n,|x|>X_TLOSS) */
34 return __kernel_standard_f (n, x, 138);
35
36 return __ieee754_jnf (n, x);
37 }
libm_alias_float(__jn,jn)38 libm_alias_float (__jn, jn)
39
40
41 /* wrapper ynf */
42 float
43 __ynf (int n, float x)
44 {
45 if (__builtin_expect (islessequal (x, 0.0f)
46 || isgreater (x, AS_FLOAT_CONSTANT (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 (n, x, 113);
54 }
55 else if (x == 0.0)
56 {
57 /* d = -one/(x-x) */
58 feraiseexcept (FE_DIVBYZERO);
59 return __kernel_standard_f (n, x, 112);
60 }
61 else if (_LIB_VERSION != _POSIX_)
62 /* yn(n,x>X_TLOSS) */
63 return __kernel_standard_f (n, x, 139);
64 }
65
66 return __ieee754_ynf (n, x);
67 }
68 libm_alias_float (__yn, yn)
69 #endif
70