1/* Copyright (C) 2011-2020 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 <https://www.gnu.org/licenses/>. */
18
19#include <math.h>
20#include <math_private.h>
21#include <math-svid-compat.h>
22
23#if LIBM_SVID_COMPAT && SHLIB_COMPAT (libm, GLIBC_2_0, GLIBC_2_27)
24/* wrapper expf */
25float
26__expf_compat (float x)
27{
28 float z = __ieee754_expf (x);
29 if (__builtin_expect (!isfinite (z) || z == 0, 0)
30 && isfinite (x) && _LIB_VERSION != _IEEE_)
31 return __kernel_standard_f (x, x, 106 + !!signbit (x));
32
33 return z;
34}
35compat_symbol (libm, __expf_compat, expf, GLIBC_2_0);
36#endif
37