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-rw-r--r--REORG.TODO/sysdeps/ieee754/ldbl-128/e_exp10l.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/ieee754/ldbl-128/e_exp10l.c b/REORG.TODO/sysdeps/ieee754/ldbl-128/e_exp10l.c
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index 0000000000..05a470fa39
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+++ b/REORG.TODO/sysdeps/ieee754/ldbl-128/e_exp10l.c
@@ -0,0 +1,49 @@
+/* Copyright (C) 2012-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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 <float.h>
+
+static const _Float128 log10_high = L(0x2.4d763776aaa2bp0);
+static const _Float128 log10_low = L(0x5.ba95b58ae0b4c28a38a3fb3e7698p-60);
+
+_Float128
+__ieee754_exp10l (_Float128 arg)
+{
+  ieee854_long_double_shape_type u;
+  _Float128 arg_high, arg_low;
+  _Float128 exp_high, exp_low;
+
+  if (!isfinite (arg))
+    return __ieee754_expl (arg);
+  if (arg < LDBL_MIN_10_EXP - LDBL_DIG - 10)
+    return LDBL_MIN * LDBL_MIN;
+  else if (arg > LDBL_MAX_10_EXP + 1)
+    return LDBL_MAX * LDBL_MAX;
+  else if (fabsl (arg) < L(0x1p-116))
+    return 1;
+
+  u.value = arg;
+  u.parts64.lsw &= 0xfe00000000000000LL;
+  arg_high = u.value;
+  arg_low = arg - arg_high;
+  exp_high = arg_high * log10_high;
+  exp_low = arg_high * log10_low + arg_low * M_LN10l;
+  return __ieee754_expl (exp_high) * __ieee754_expl (exp_low);
+}
+strong_alias (__ieee754_exp10l, __exp10l_finite)