1/* Wrapper to set errno for jn and yn.
2 Copyright (C) 2017-2020 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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 <https://www.gnu.org/licenses/>. */
18
19/* Only build wrappers from the templates for the types that define the macro
20 below. This macro is set in math-type-macros-<type>.h in sysdeps/generic
21 for each floating-point type. */
22#if __USE_WRAPPER_TEMPLATE
23
24# include <errno.h>
25# include <fenv.h>
26# include <math.h>
27# include <math_private.h>
28
29FLOAT
30M_DECL_FUNC (__jn) (int n, FLOAT x)
31{
32 return M_SUF (__ieee754_jn) (n, x);
33}
34declare_mgen_alias (__jn, jn)
35
36FLOAT
37M_DECL_FUNC (__yn) (int n, FLOAT x)
38{
39 if (__glibc_unlikely (islessequal (x, M_LIT (0.0))))
40 {
41 if (x < 0)
42 /* Domain error: yn(x<0). */
43 __set_errno (EDOM);
44 else if (x == 0)
45 /* Pole error: yn(0). */
46 __set_errno (ERANGE);
47 }
48 return M_SUF (__ieee754_yn) (n, x);
49}
50declare_mgen_alias (__yn, yn)
51
52#endif /* __USE_WRAPPER_TEMPLATE. */
53