1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
/* Copyright (C) 2011-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gmail.com>, 2011.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
#include <libm-alias-double.h>
#if LIBM_SVID_COMPAT && (SHLIB_COMPAT (libm, GLIBC_2_0, GLIBC_2_29) \
|| defined NO_LONG_DOUBLE \
|| defined LONG_DOUBLE_COMPAT)
/* wrapper exp */
double
__exp_compat (double x)
{
double z = __ieee754_exp (x);
if (__builtin_expect (!isfinite (z) || z == 0, 0)
&& isfinite (x) && _LIB_VERSION != _IEEE_)
return __kernel_standard (x, x, 6 + !!signbit (x));
return z;
}
# if SHLIB_COMPAT (libm, GLIBC_2_0, GLIBC_2_29)
compat_symbol (libm, __exp_compat, exp, GLIBC_2_0);
# endif
# ifdef NO_LONG_DOUBLE
weak_alias (__exp_compat, expl)
# endif
# ifdef LONG_DOUBLE_COMPAT
/* Work around gas bug "multiple versions for symbol". */
weak_alias (__exp_compat, __exp_compat_alias)
LONG_DOUBLE_COMPAT_CHOOSE_libm_expl (
compat_symbol (libm, __exp_compat_alias, expl, FIRST_VERSION_libm_expl), );
# endif
#endif
|
