From bcea7ad608466a886767ddc743dce0df11980b5f Mon Sep 17 00:00:00 2001 From: Szabolcs Nagy Date: Wed, 6 Sep 2017 16:48:41 +0100 Subject: 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. --- math/w_expf_compat.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 math/w_expf_compat.c (limited to 'math/w_expf_compat.c') diff --git a/math/w_expf_compat.c b/math/w_expf_compat.c new file mode 100644 index 0000000000..a38ff4082d --- /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 , 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 + . */ + +#include +#include +#include + +#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 -- cgit 1.4.1