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14 Commits

Author SHA1 Message Date
Joseph Myers
8795b4a443 Set errno for scalb errors (bug 6803, bug 6804). 
This patch fixes the default mode of scalb to set errno (bugs 6803 and
6804).

Previously, the _LIB_VERSION == _SVID_ mode would set errno but only
in some relevant cases, and with various peculiarities (such as errno
setting when an exact infinity or zero result arises with an argument
to scalb being an infinity).  This patch leaves this mode
bug-compatible, while making the default mode set errno in accordance
with normal practice (so an exact infinity from an infinite argument
is not an error, and nor is an exact zero result).  gen-libm-test.pl
is taught new notation such as ERRNO_PLUS_OFLOW to facilitate writing
the tests of errno setting for underflow / overflow in libm-test.inc.

Note that bug 6803 also covers scalbn and scalbln, but this patch only
addresses the scalb parts of that bug (along with the whole of bug
6804).

Tested x86_64 and x86.

	[BZ #6803]
	[BZ #6804]
	* math/w_scalb.c (__scalb): For non-SVID mode, check result and
	set errno as appropriate.
	* math/w_scalbf.c (__scalbf): Likewise.
	* math/w_scalbl.c (__scalbl): Likewise.
	* math/gen-libm-test.pl (parse_args): Handle ERRNO_PLUS_OFLOW,
	ERRNO_MINUS_OFLOW, ERRNO_PLUS_UFLOW and ERRNO_MINUS_UFLOW.
	* math/libm-test.inc (scalb_test_data): Add errno expectations.
	Add more NaN tests.
 2014-03-31 14:57:53 +00:00
Ondřej Bílka
a1ffb40e32 Use glibc_likely instead __builtin_expect. 2014-02-10 15:07:12 +01:00
Allan McRae
d4697bc93d Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
Joseph Myers
568035b787 Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
Joseph Myers
41bf21a1e7 Avoid overflows from long double functions using __kernel_standard. 2012-03-28 09:32:12 +00:00
Paul Eggert
59ba27a63a Replace FSF snail mail address with URLs. 2012-02-09 23:18:22 +00:00
Ulrich Drepper
0ac5ae2335 Optimize libm 
libm is now somewhat integrated with gcc's -ffinite-math-only option
and lots of the wrapper functions have been optimized.
 2011-10-12 11:27:51 -04:00
Ulrich Drepper
9277c06437 Use private math_private.h in files in math/ 2011-10-08 05:16:04 -04:00
Ulrich Drepper
9d13fb2413 Moved to csu/errno-loc.c. 2005-12-14 15:06:39 +00:00
Ulrich Drepper
a334319f65 (CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4. 2004-12-22 20:10:10 +00:00
Jakub Jelinek
0ecb606cb6 2.5-18.1 2007-07-12 18:26:36 +00:00
Ulrich Drepper
e275093526 Update. 
* math/w_acos.c: Move to ...
	* sysdeps/generic/w_acos.c: ...here.  New file.
	* math/w_acosf.c: Move to ...
	* sysdeps/generic/w_acosf.c: ...here.  New file.
	* math/w_acosh.c: Move to ...
	* sysdeps/generic/w_acosh.c: ...here.  New file.
	* math/w_acoshf.c: Move to ...
	* sysdeps/generic/w_acoshf.c: ...here.  New file.
	* math/w_acoshl.c: Move to ...
	* sysdeps/generic/w_acoshl.c: ...here.  New file.
	* math/w_acosl.c: Move to ...
	* sysdeps/generic/w_acosl.c: ...here.  New file.
	* math/w_asin.c: Move to ...
	* sysdeps/generic/w_asin.c: ...here.  New file.
	* math/w_asinf.c: Move to ...
	* sysdeps/generic/w_asinf.c: ...here.  New file.
	* math/w_asinl.c: Move to ...
	* sysdeps/generic/w_asinl.c: ...here.  New file.
	* math/w_atan2.c: Move to ...
	* sysdeps/generic/w_atan2.c: ...here.  New file.
	* math/w_atan2f.c: Move to ...
	* sysdeps/generic/w_atan2f.c: ...here.  New file.
	* math/w_atan2l.c: Move to ...
	* sysdeps/generic/w_atan2l.c: ...here.  New file.
	* math/w_atanh.c: Move to ...
	* sysdeps/generic/w_atanh.c: ...here.  New file.
	* math/w_atanhf.c: Move to ...
	* sysdeps/generic/w_atanhf.c: ...here.  New file.
	* math/w_atanhl.c: Move to ...
	* sysdeps/generic/w_atanhl.c: ...here.  New file.
	* math/w_cosh.c: Move to ...
	* sysdeps/generic/w_cosh.c: ...here.  New file.
	* math/w_coshf.c: Move to ...
	* sysdeps/generic/w_coshf.c: ...here.  New file.
	* math/w_coshl.c: Move to ...
	* sysdeps/generic/w_coshl.c: ...here.  New file.
	* math/w_drem.c: Move to ...
	* sysdeps/generic/w_drem.c: ...here.  New file.
	* math/w_dremf.c: Move to ...
	* sysdeps/generic/w_dremf.c: ...here.  New file.
	* math/w_dreml.c: Move to ...
	* sysdeps/generic/w_dreml.c: ...here.  New file.
	* math/w_exp10.c: Move to ...
	* sysdeps/generic/w_exp10.c: ...here.  New file.
	* math/w_exp10f.c: Move to ...
	* sysdeps/generic/w_exp10f.c: ...here.  New file.
	* math/w_exp10l.c: Move to ...
	* sysdeps/generic/w_exp10l.c: ...here.  New file.
	* math/w_exp2.c: Move to ...
	* sysdeps/generic/w_exp2.c: ...here.  New file.
	* math/w_exp2f.c: Move to ...
	* sysdeps/generic/w_exp2f.c: ...here.  New file.
	* math/w_exp2l.c: Move to ...
	* sysdeps/generic/w_exp2l.c: ...here.  New file.
	* math/w_fmod.c: Move to ...
	* sysdeps/generic/w_fmod.c: ...here.  New file.
	* math/w_fmodf.c: Move to ...
	* sysdeps/generic/w_fmodf.c: ...here.  New file.
	* math/w_fmodl.c: Move to ...
	* sysdeps/generic/w_fmodl.c: ...here.  New file.
	* math/w_hypot.c: Move to ...
	* sysdeps/generic/w_hypot.c: ...here.  New file.
	* math/w_hypotf.c: Move to ...
	* sysdeps/generic/w_hypotf.c: ...here.  New file.
	* math/w_hypotl.c: Move to ...
	* sysdeps/generic/w_hypotl.c: ...here.  New file.
	* math/w_j0.c: Move to ...
	* sysdeps/generic/w_j0.c: ...here.  New file.
	* math/w_j0f.c: Move to ...
	* sysdeps/generic/w_j0f.c: ...here.  New file.
	* math/w_j0l.c: Move to ...
	* sysdeps/generic/w_j0l.c: ...here.  New file.
	* math/w_j1.c: Move to ...
	* sysdeps/generic/w_j1.c: ...here.  New file.
	* math/w_j1f.c: Move to ...
	* sysdeps/generic/w_j1f.c: ...here.  New file.
	* math/w_j1l.c: Move to ...
	* sysdeps/generic/w_j1l.c: ...here.  New file.
	* math/w_jn.c: Move to ...
	* sysdeps/generic/w_jn.c: ...here.  New file.
	* math/w_jnf.c: Move to ...
	* sysdeps/generic/w_jnf.c: ...here.  New file.
	* math/w_jnl.c: Move to ...
	* sysdeps/generic/w_jnl.c: ...here.  New file.
	* math/w_lgamma.c: Move to ...
	* sysdeps/generic/w_lgamma.c: ...here.  New file.
	* math/w_lgammaf.c: Move to ...
	* sysdeps/generic/w_lgammaf.c: ...here.  New file.
	* math/w_lgammaf_r.c: Move to ...
	* sysdeps/generic/w_lgammaf_r.c: ...here.  New file.
	* math/w_lgammal.c: Move to ...
	* sysdeps/generic/w_lgammal.c: ...here.  New file.
	* math/w_lgammal_r.c: Move to ...
	* sysdeps/generic/w_lgammal_r.c: ...here.  New file.
	* math/w_lgamma_r.c: Move to ...
	* sysdeps/generic/w_lgamma_r.c: ...here.  New file.
	* math/w_log10.c: Move to ...
	* sysdeps/generic/w_log10.c: ...here.  New file.
	* math/w_log10f.c: Move to ...
	* sysdeps/generic/w_log10f.c: ...here.  New file.
	* math/w_log10l.c: Move to ...
	* sysdeps/generic/w_log10l.c: ...here.  New file.
	* math/w_log.c: Move to ...
	* sysdeps/generic/w_log.c: ...here.  New file.
	* math/w_logf.c: Move to ...
	* sysdeps/generic/w_logf.c: ...here.  New file.
	* math/w_logl.c: Move to ...
	* sysdeps/generic/w_logl.c: ...here.  New file.
	* math/w_pow.c: Move to ...
	* sysdeps/generic/w_pow.c: ...here.  New file.
	* math/w_powf.c: Move to ...
	* sysdeps/generic/w_powf.c: ...here.  New file.
	* math/w_powl.c: Move to ...
	* sysdeps/generic/w_powl.c: ...here.  New file.
	* math/w_remainder.c: Move to ...
	* sysdeps/generic/w_remainder.c: ...here.  New file.
	* math/w_remainderf.c: Move to ...
	* sysdeps/generic/w_remainderf.c: ...here.  New file.
	* math/w_remainderl.c: Move to ...
	* sysdeps/generic/w_remainderl.c: ...here.  New file.
	* math/w_scalb.c: Move to ...
	* sysdeps/generic/w_scalb.c: ...here.  New file.
	* math/w_scalbf.c: Move to ...
	* sysdeps/generic/w_scalbf.c: ...here.  New file.
	* math/w_scalbl.c: Move to ...
	* sysdeps/generic/w_scalbl.c: ...here.  New file.
	* math/w_sinh.c: Move to ...
	* sysdeps/generic/w_sinh.c: ...here.  New file.
	* math/w_sinhf.c: Move to ...
	* sysdeps/generic/w_sinhf.c: ...here.  New file.
	* math/w_sinhl.c: Move to ...
	* sysdeps/generic/w_sinhl.c: ...here.  New file.
	* math/w_sqrtl.c: Move to ...
	* sysdeps/generic/w_sqrtl.c: ...here.  New file.
	* math/w_tgamma.c: Move to ...
	* sysdeps/generic/w_tgamma.c: ...here.  New file.
	* math/w_tgammaf.c: Move to ...
	* sysdeps/generic/w_tgammaf.c: ...here.  New file.
	* math/w_tgammal.c: Move to ...
	* sysdeps/generic/w_tgammal.c: ...here.  New file.
 2001-02-17 01:47:54 +00:00
Ulrich Drepper
6d0c49145e Update. 
* sysdeps/i386/fpu/e_scalb.S: Handle NaN as first parameter correctly.
	* sysdeps/i386/fpu/e_scalbf.S: Likewise.
	* sysdeps/i386/fpu/e_scalbl.S: Likewise.
	* math/w_scalb.c: Don't use matherr except in SVID mode.
	* math/w_scalbf.c: Likewise.
	* math/w_scalbl.c: Likewise.
	* math/test-misc.c: Add test for NaN and scalbl.
	Reported by Fred J. Tydeman <tydeman@tybor.com>.

2000-12-04  Ulrich Drepper  <drepper@redhat.com>
 2000-12-05 06:36:53 +00:00
Ulrich Drepper
abfbdde177 Update. 1999-07-14 00:54:57 +00:00