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posix_spawn_file_actions_addclose: Work around Solaris 11 2011-11 bug.
[gnulib.git]
/
lib
/
logl.c
diff --git
a/lib/logl.c
b/lib/logl.c
index
dc75a8f
..
42c50cb
100644
(file)
--- a/
lib/logl.c
+++ b/
lib/logl.c
@@
-1,9
+1,9
@@
/* Copyright 2001 by Stephen L. Moshier <moshier@na-net.ornl.gov>
/* Copyright 2001 by Stephen L. Moshier <moshier@na-net.ornl.gov>
- This program is free software
;
you can redistribute it and/or modify
+ This program is free software
:
you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version
2, or (at your option)
- any later version.
+ the Free Software Foundation; either version
3 of the License, or
+
(at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
@@
-11,16
+11,24
@@
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING.
- If not, write to the Free Software Foundation,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include <math.h>
#include <config.h>
/* Specification. */
#include <math.h>
-/* logll.c
+#if HAVE_SAME_LONG_DOUBLE_AS_DOUBLE
+
+long double
+logl (long double x)
+{
+ return log (x);
+}
+
+#else
+
+/* logll.c
*
* Natural logarithm for 128-bit long double precision.
*
*
* Natural logarithm for 128-bit long double precision.
*
@@
-124,7
+132,7
@@
static const long double logtbl[92] = {
-2.7902661731604211834685052867305795169688E-4L,
-1.2335696813916860754951146082826952093496E-4L,
-3.0677461025892873184042490943581654591817E-5L,
-2.7902661731604211834685052867305795169688E-4L,
-1.2335696813916860754951146082826952093496E-4L,
-3.0677461025892873184042490943581654591817E-5L,
-#define ZERO logtbl[38]
+#
define ZERO logtbl[38]
0.0000000000000000000000000000000000000000E0L,
-3.0359557945051052537099938863236321874198E-5L,
-1.2081346403474584914595395755316412213151E-4L,
0.0000000000000000000000000000000000000000E0L,
-3.0359557945051052537099938863236321874198E-5L,
-1.2081346403474584914595395755316412213151E-4L,
@@
-187,15
+195,19
@@
static const long double
ln2b = 1.4286068203094172321214581765680755001344E-6L;
long double
ln2b = 1.4286068203094172321214581765680755001344E-6L;
long double
-logl(long double x)
+logl
(long double x)
{
long double z, y, w;
{
long double z, y, w;
- long double u, t;
- unsigned int m;
+ long double t;
int k, e;
/* Check for IEEE special cases. */
int k, e;
/* Check for IEEE special cases. */
+ /* log(NaN) = NaN. */
+ if (isnanl (x))
+ {
+ return x;
+ }
/* log(0) = -infinity. */
if (x == 0.0L)
{
/* log(0) = -infinity. */
if (x == 0.0L)
{
@@
-206,14
+218,14
@@
logl(long double x)
{
return (x - x) / ZERO;
}
{
return (x - x) / ZERO;
}
- /* log (infinity
or NaN
) */
- if (x + x == x
|| x != x
)
+ /* log (infinity) */
+ if (x + x == x)
{
return x + x;
}
/* Extract exponent and reduce domain to 0.703125 <= u < 1.40625 */
{
return x + x;
}
/* Extract exponent and reduce domain to 0.703125 <= u < 1.40625 */
- x = frexpl(x, &e);
+ x = frexpl
(x, &e);
if (x < 0.703125L)
{
x += x;
if (x < 0.703125L)
{
x += x;
@@
-237,17
+249,17
@@
logl(long double x)
/* Series expansion of log(1+z). */
w = z * z;
y = ((((((((((((l15 * z
/* Series expansion of log(1+z). */
w = z * z;
y = ((((((((((((l15 * z
- + l14) * z
- + l13) * z
- + l12) * z
- + l11) * z
- + l10) * z
- + l9) * z
- + l8) * z
- + l7) * z
- + l6) * z
- + l5) * z
- + l4) * z
+
+ l14) * z
+
+ l13) * z
+
+ l12) * z
+
+ l11) * z
+
+ l10) * z
+
+ l9) * z
+
+ l8) * z
+
+ l7) * z
+
+ l6) * z
+
+ l5) * z
+
+ l4) * z
+ l3) * z * w;
y -= 0.5 * w;
y += e * ln2b; /* Base 2 exponent offset times ln(2). */
+ l3) * z * w;
y -= 0.5 * w;
y += e * ln2b; /* Base 2 exponent offset times ln(2). */
@@
-257,3
+269,5
@@
logl(long double x)
y += e * ln2a;
return y;
}
y += e * ln2a;
return y;
}
+
+#endif