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authorSzabolcs Nagy <szabolcs.nagy@arm.com>2017-09-06 16:48:41 +0100
committerSzabolcs Nagy <szabolcs.nagy@arm.com>2017-09-13 17:22:22 +0100
commitbcea7ad608466a886767ddc743dce0df11980b5f (patch)
treebc49cdb3ef44792cb2cd49fe70fbf6f8da7c5757 /math/w_expf_compat.c
parent0fc56478a969cd02475130526bf9b2a6e416993c (diff)
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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.c37
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