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| author | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2017-09-06 16:48:41 +0100 |
|---|---|---|
| committer | Szabolcs Nagy <szabolcs.nagy@arm.com> | 2017-09-13 17:22:22 +0100 |
| commit | bcea7ad608466a886767ddc743dce0df11980b5f (patch) | |
| tree | bc49cdb3ef44792cb2cd49fe70fbf6f8da7c5757 /math/w_expf_compat.c | |
| parent | 0fc56478a969cd02475130526bf9b2a6e416993c (diff) | |
| download | glibc-bcea7ad608466a886767ddc743dce0df11980b5f.zip glibc-bcea7ad608466a886767ddc743dce0df11980b5f.tar.gz glibc-bcea7ad608466a886767ddc743dce0df11980b5f.tar.bz2 | |
Move exp compat wrappers under math/
Move exp compat wrappers to math/w_exp{,f,l}_compat.c to be
consistent with other wrappers.
* sysdeps/ieee754/dbl-64/w_exp_compat.c: Move to...
* math/w_exp_compat.c: ... here.
* sysdeps/ieee754/flt-32/w_expf_compat.c: Move to...
* math/w_expf_compat.c: ... here.
* sysdeps/ieee754/ldbl-128/w_expl_compat.c: Move to...
* math/w_expl_compat.c: ... here.
* sysdeps/ieee754/ldbl-128ibm/w_expl_compat.c: Remove.
* sysdeps/ieee754/ldbl-96/w_expl_compat.c: Remove.
* sysdeps/ieee754/ldbl-opt/w_exp_compat.c: Use the new path.
* sysdeps/ieee754/ldbl-opt/w_expl_compat.c: Likewise.
Diffstat (limited to 'math/w_expf_compat.c')
| -rw-r--r-- | math/w_expf_compat.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/math/w_expf_compat.c b/math/w_expf_compat.c new file mode 100644 index 0000000..a38ff40 --- /dev/null +++ b/math/w_expf_compat.c @@ -0,0 +1,37 @@ +/* Copyright (C) 2011-2017 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 + <http://www.gnu.org/licenses/>. */ + +#include <math.h> +#include <math_private.h> +#include <math-svid-compat.h> + +#if LIBM_SVID_COMPAT +/* wrapper expf */ +float +__expf (float x) +{ + float z = __ieee754_expf (x); + if (__builtin_expect (!isfinite (z) || z == 0, 0) + && isfinite (x) && _LIB_VERSION != _IEEE_) + return __kernel_standard_f (x, x, 106 + !!signbit (x)); + + return z; +} +hidden_def (__expf) +weak_alias (__expf, expf) +#endif |