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77 Commits

Author SHA1 Message Date
Joseph Myers
9c84384cc1 Remove trailing whitespace. 2013-06-05 20:44:03 +00:00
Joseph Myers
3e69426875 Fix nearbyint scheduling of arithmetic past fesetenv (bug 15490). 2013-05-19 18:40:25 +00:00
Ryan S. Arnold
e054f49430 Add #include <stdint.h> for uint[32|64]_t usage (except installed headers). 2013-05-16 11:32:54 -05:00
Joseph Myers
ed41ffefc3 Fix ldbl-128ibm cos range reduction near pi/2 (bug 15359). 2013-05-09 21:30:08 +00:00
Joseph Myers
d8cd06db62 Improve tgamma accuracy (bugs 2546, 2560, 5159, 15426). 2013-05-08 11:58:18 +00:00
Thomas Schwinge
572676160d New <math.h> macro named issignaling to check for a signaling NaN (sNaN). 
It is based on draft TS 18661 and currently enabled as a GNU extension.
 2013-04-02 13:51:02 +02:00
Adhemerval Zanella
fbbe2b9a1f Fix e_logl (128ibm) spurious underflow 2013-03-28 09:52:48 -03:00
Adhemerval Zanella
e42a38dd9d BZ#13889: expl (709.75) wrongly overflows for ldbl-128ibm 
The patch increase the high value to check if expl overflows. Current
high mark value is not really correct, the algorithm accepts high values.
It also adds a correct wrapper function to check for overflow and underflow.
 2013-03-22 12:39:10 -03:00
Adhemerval Zanella
edf66e57fc PowerPC: unify math_ldbl.h implementations 
This patch removes redudant definition from PowerPC specific
math_ldbl, using the definitions from ieee754 math_ldbl.h.
 2013-03-08 11:07:15 -03:00
Adhemerval Zanella
e0b780ad5b BZ #15055: Use __ieee754_sqrl in acoshl for lbdl-128ibm 2013-03-04 11:37:51 -03:00
Andreas Schwab
d1cdd05138 Revert "sysdeps/ieee754/ldbl-128ibm/e_expl.c" 
This reverts commit 35eb879e3b.
 2013-01-10 10:44:05 +01:00
Andreas Schwab
35eb879e3b sysdeps/ieee754/ldbl-128ibm/e_expl.c 2013-01-10 09:59:58 +01:00
Joseph Myers
568035b787 Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
Joseph Myers
f4cf5f2d8b Add script to update copyright notices and reformat some to facilitate its use. 2013-01-01 16:29:10 +00:00
Joseph Myers
66ca5a5b93 Include stdlib.h in sysdeps/ieee754/ldbl-128ibm/x2y2m1l.c. 2012-12-05 20:03:45 +00:00
Joseph Myers
b37984ad36 Fix ldbl-128ibm "set but not used" warnings. 2012-12-04 21:19:17 +00:00
Joseph Myers
b3b099af03 Fix powl inaccuracy for ldbl-128ibm (bug 14914). 2012-12-04 14:39:24 +00:00
Joseph Myers
0a42601f27 Fix ldbl-128ibm atanl spurious underflows (bug 14871). 2012-11-22 19:56:47 +00:00
Joseph Myers
c60d3bf2fa Fix sign of inexact zero results for ldbl-128ibm fmal. 2012-11-22 15:00:35 +00:00
Joseph Myers
ef1e0867c0 Fix ldbl-128ibm powl spurious underflows. 2012-11-22 14:59:45 +00:00
Joseph Myers
1468ded38e Fix ldbl-128ibm hypotl internal underflows (bug 14869). 2012-11-22 14:58:41 +00:00
Joseph Myers
8e27e3cc45 Fix ldbl-128ibm hypotl inaccuracy for arguments with large ratio (bug 14868). 2012-11-22 14:57:22 +00:00
Joseph Myers
7c7feb4772 Fix expm1l spurious underflows for ldbl-128ibm. 2012-11-22 14:55:17 +00:00
Joseph Myers
16a0e2ec87 Fix ldbl-128ibm atan2l for x near 1. 2012-10-31 20:44:59 +00:00
Joseph Myers
d032e0d29b Fix inaccuracy of clog, clog10 near |z| = 1 (bug 13629). 2012-09-25 19:43:49 +00:00
Marek Polacek
354691b7b5 Set up errno properly for yn. 2012-07-25 12:59:36 +02:00
Adhemerval Zanella
28cfe84316 Fix ctan, ctanh of subnormals in round-upwards mode (bug 14328). 
IBM long double fixes and POWER ulps update.
 2012-07-11 09:19:27 -03:00
Adhemerval Zanella
1b671feb61 Fix for wrong ldbl128-ibm fmodl commit 2012-06-05 21:33:23 -03:00
Adhemerval Zanella
6043738b36 Fix spurious undeflow for ldbl-128ibm erfl 
For values higher than 25.6283 erflc underflow, so adjust erfl
to return a constant value based argument sign.
 2012-06-05 10:42:49 -03:00
Adhemerval Zanella
34ae0b3270 Fix ldbl128ibm fmodl for subnormals. 2012-06-05 10:16:49 -03:00
Andreas Schwab
25dbcb277a Optimize handling of denormals in logb/logbf/logbl 2012-05-26 13:53:22 +02:00
Adhemerval Zanella
89c9aa491a Fix for logb/logbf/logbl (bugs 13954/13955/13956) 
POSIX 2008 states that if the input for 'logb[f|l]' is a subnormal number
it should be treated as if it were normalized.  This means the
implementation should calculate the log2 of the mantissa and add it to the
subnormal exponent (-126 for float and -1022 for double and IBM long
double).  This patch takes care of that.
 2012-05-10 15:11:55 -05:00
Joseph Myers
d8b82cad1b Fix exp10 inaccuracy and exceptions (bugs 13884, 13914). 2012-05-06 18:23:44 +00:00
Adhemerval Zanella
31dc8730af Fix for ldbl-128ibm acosl/asinl inaccuracies 
2012-05-02  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>

	* sysdeps/ieee754/ldbl-128ibm/e_acosl.c (__ieee754_acosl): Fix
	long double comparison inaccuracies.
	* sysdeps/ieee754/ldbl-128ibm/e_asinl.c (__ieee754_asinl):
	* Likewise.
	* sysdeps/powerpc/fpu/libm-test-ulps: Update.
 2012-05-04 13:06:32 +02:00
Adhemerval Zanella
4f9d04aa8f Fix nexttoward bugs 
[BZ #2550]
        [BZ #2570]
        * sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c: Use floating-point
        comparisons to determine direction to adjust input.
 2012-05-02 15:14:17 +02:00
Joseph Myers
7cb029ee6e Fix nexttoward bugs (bugs 2550, 2570). 2012-05-01 15:37:43 +00:00
Andreas Schwab
7e0d315da8 Fix formatting of denormal IBM long double numbers 2012-04-28 22:21:27 +02:00
Adhemerval Zanella
0ac229c819 Fix ctan, ctanh overflow for ldbl-128ibm (bug 11521). 2012-04-26 11:18:11 -05:00
Adhemerval Zanella
76da726532 Fix ilogb exception and errno (bug 6794) 
[BZ #6794]
Following Joseph comments about bug 6794, here is a proposed fix. It turned out
to be a large fix mainly because I had to move some file along to follow libm
files/names conventions.

Basically I have added wrappers (w_ilogb.c, w_ilogbf.c, w_ilogbl.c) that now calls
the symbol '__ieee754_ilogb'. The wrappers checks for '__ieee754_ilogb' output and
set the errno and raise exceptions as expected.

The '__ieee754_ilogb' is implemented in sysdeps. I have moved the 's_ilogb[f|l]' files
to e_ilogb[f|l] and renamed the '__ilogb[f|l]' to '__ieee754_ilogb[f|l]'.

I also found out a bug in i386 and x86-64 assembly coded ilogb implementation where
it raises a FE_DIVBYZERO when argument is '0.0'. I corrected this issue as well.

Finally I added the errno and FE_INVALID tests for 0.0, NaN and +-InF argument. Tested
on i386, x86-64, ppc32 and ppc64.
 2012-04-17 22:12:53 +02:00
Andreas Schwab
a3f61311c0 Fix undue underflow in ldbl-128ibm version of expl 2012-03-26 14:19:35 +02:00
Joseph Myers
c0df8e693f Fix low-part sign handling in sin/cos for ldbl-128 and ldbl-128ibm. 2012-03-22 12:52:50 +00:00
Andreas Schwab
dcb3398838 Fix missing overflow/underflow exception in ldbl-128ibm version of powl 2012-03-21 23:59:22 +01:00
Richard Henderson
1ed0291c31 Use <> for math.h and math_private.h everywhere. 
Entire tree edited via find | grep | sed.
 2012-03-09 16:09:10 -08:00
Andreas Schwab
bbb78d030e Fix loss of precision in cosh and sinh for IBM long double 2012-03-05 20:38:17 +01:00
Joseph Myers
a6d06d7b86 Fix scalbn, scalbln integer overflow. 2012-03-02 15:32:56 +00:00
Joseph Myers
7b1902cb3e Improve erfc accuracy. 2012-03-01 21:15:38 +00:00
Paul Eggert
59ba27a63a Replace FSF snail mail address with URLs. 2012-02-09 23:18:22 +00:00
Joseph Myers
8db2188281 Remove __STDC__ conditionals from libm. 2012-01-27 17:29:45 +00:00
Andreas Schwab
246ad57ad6 Add missing _finite aliases 2011-10-23 15:32:05 +02:00
Andreas Schwab
ee2aafe08e Fix compilation due to __nan defines 2011-10-22 14:03:26 +02:00