Commit Graph

21 Commits

Author SHA1 Message Date
Joseph Myers
f7a9f785e5 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Joseph Myers
cfcbebf7ac Don't use volatile in exp2f.
sysdeps/ieee754/flt-32/e_exp2f.c declares two variable as "static
const volatile float".  Maybe this use of "volatile" was originally
intended to inhibit optimization of underflowing / overflowing
operations such as TWOM100 * TWOM100; in any case, it's not currently
needed, as given -frounding-math constant folding of such expressions
is properly disabled when it would be unsafe.  This patch removes the
unnecessary use of "volatile".

Tested for x86_64.

	* sysdeps/ieee754/flt-32/e_exp2f.c (TWOM100): Remove volatile.
	(TWO127): Likewise.
2015-09-23 22:52:13 +00:00
Joseph Myers
d96164c330 Refactor code forcing underflow exceptions.
Various floating-point functions have code to force underflow
exceptions if a tiny result was computed in a way that might not have
resulted in such exceptions even though the result is inexact.  This
typically uses math_force_eval to ensure that the underflowing
expression is evaluated, but sometimes uses volatile.

This patch refactors such code to use three new macros
math_check_force_underflow, math_check_force_underflow_nonneg and
math_check_force_underflow_complex (which in turn use
math_force_eval).  In the limited number of cases not suited to a
simple conversion to these macros, existing uses of volatile are
changed to use math_force_eval instead.  The converted code does not
always execute exactly the same sequence of operations as the original
code, but the overall effects should be the same.

Tested for x86_64, x86, mips64 and powerpc.

	* sysdeps/generic/math_private.h (fabs_tg): New macro.
	(min_of_type): Likewise.
	(math_check_force_underflow): Likewise.
	(math_check_force_underflow_nonneg): Likewise.
	(math_check_force_underflow_complex): Likewise.
	* math/e_exp2l.c (__ieee754_exp2l): Use
	math_check_force_underflow_nonneg.
	* math/k_casinh.c (__kernel_casinh): Likewise.
	* math/k_casinhf.c (__kernel_casinhf): Likewise.
	* math/k_casinhl.c (__kernel_casinhl): Likewise.
	* math/s_catan.c (__catan): Use
	math_check_force_underflow_complex.
	* math/s_catanf.c (__catanf): Likewise.
	* math/s_catanh.c (__catanh): Likewise.
	* math/s_catanhf.c (__catanhf): Likewise.
	* math/s_catanhl.c (__catanhl): Likewise.
	* math/s_catanl.c (__catanl): Likewise.
	* math/s_ccosh.c (__ccosh): Likewise.
	* math/s_ccoshf.c (__ccoshf): Likewise.
	* math/s_ccoshl.c (__ccoshl): Likewise.
	* math/s_cexp.c (__cexp): Likewise.
	* math/s_cexpf.c (__cexpf): Likewise.
	* math/s_cexpl.c (__cexpl): Likewise.
	* math/s_clog.c (__clog): Use math_check_force_underflow_nonneg.
	* math/s_clog10.c (__clog10): Likewise.
	* math/s_clog10f.c (__clog10f): Likewise.
	* math/s_clog10l.c (__clog10l): Likewise.
	* math/s_clogf.c (__clogf): Likewise.
	* math/s_clogl.c (__clogl): Likewise.
	* math/s_csin.c (__csin): Use math_check_force_underflow_complex.
	* math/s_csinf.c (__csinf): Likewise.
	* math/s_csinh.c (__csinh): Likewise.
	* math/s_csinhf.c (__csinhf): Likewise.
	* math/s_csinhl.c (__csinhl): Likewise.
	* math/s_csinl.c (__csinl): Likewise.
	* math/s_csqrt.c (__csqrt): Use math_check_force_underflow.
	* math/s_csqrtf.c (__csqrtf): Likewise.
	* math/s_csqrtl.c (__csqrtl): Likewise.
	* math/s_ctan.c (__ctan): Use math_check_force_underflow_complex.
	* math/s_ctanf.c (__ctanf): Likewise.
	* math/s_ctanh.c (__ctanh): Likewise.
	* math/s_ctanhf.c (__ctanhf): Likewise.
	* math/s_ctanhl.c (__ctanhl): Likewise.
	* math/s_ctanl.c (__ctanl): Likewise.
	* stdlib/strtod_l.c (round_and_return): Use math_force_eval
	instead of volatile.
	* sysdeps/ieee754/dbl-64/e_asin.c (__ieee754_asin): Use
	math_check_force_underflow.
	* sysdeps/ieee754/dbl-64/e_atanh.c (__ieee754_atanh): Likewise.
	* sysdeps/ieee754/dbl-64/e_exp.c (__ieee754_exp): Do not use
	volatile when forcing underflow.
	* sysdeps/ieee754/dbl-64/e_exp2.c (__ieee754_exp2): Use
	math_check_force_underflow_nonneg.
	* sysdeps/ieee754/dbl-64/e_gamma_r.c (__ieee754_gamma_r):
	Likewise.
	* sysdeps/ieee754/dbl-64/e_j1.c (__ieee754_j1): Use
	math_check_force_underflow.
	* sysdeps/ieee754/dbl-64/e_jn.c (__ieee754_jn): Likewise.
	* sysdeps/ieee754/dbl-64/e_sinh.c (__ieee754_sinh): Likewise.
	* sysdeps/ieee754/dbl-64/s_asinh.c (__asinh): Likewise.
	* sysdeps/ieee754/dbl-64/s_atan.c (atan): Use
	math_check_force_underflow_nonneg.
	* sysdeps/ieee754/dbl-64/s_erf.c (__erf): Use
	math_check_force_underflow.
	* sysdeps/ieee754/dbl-64/s_expm1.c (__expm1): Likewise.
	* sysdeps/ieee754/dbl-64/s_fma.c (__fma): Use math_force_eval
	instead of volatile.
	* sysdeps/ieee754/dbl-64/s_log1p.c (__log1p): Use
	math_check_force_underflow.
	* sysdeps/ieee754/dbl-64/s_sin.c (__sin): Likewise.
	* sysdeps/ieee754/dbl-64/s_tan.c (tan): Use
	math_check_force_underflow_nonneg.
	* sysdeps/ieee754/dbl-64/s_tanh.c (__tanh): Use
	math_check_force_underflow.
	* sysdeps/ieee754/flt-32/e_asinf.c (__ieee754_asinf): Likewise.
	* sysdeps/ieee754/flt-32/e_atanhf.c (__ieee754_atanhf): Likewise.
	* sysdeps/ieee754/flt-32/e_exp2f.c (__ieee754_exp2f): Use
	math_check_force_underflow_nonneg.
	* sysdeps/ieee754/flt-32/e_gammaf_r.c (__ieee754_gammaf_r):
	Likewise.
	* sysdeps/ieee754/flt-32/e_j1f.c (__ieee754_j1f): Use
	math_check_force_underflow.
	* sysdeps/ieee754/flt-32/e_jnf.c (__ieee754_jnf): Likewise.
	* sysdeps/ieee754/flt-32/e_sinhf.c (__ieee754_sinhf): Likewise.
	* sysdeps/ieee754/flt-32/k_sinf.c (__kernel_sinf): Likewise.
	* sysdeps/ieee754/flt-32/k_tanf.c (__kernel_tanf): Likewise.
	* sysdeps/ieee754/flt-32/s_asinhf.c (__asinhf): Likewise.
	* sysdeps/ieee754/flt-32/s_atanf.c (__atanf): Likewise.
	* sysdeps/ieee754/flt-32/s_erff.c (__erff): Likewise.
	* sysdeps/ieee754/flt-32/s_expm1f.c (__expm1f): Likewise.
	* sysdeps/ieee754/flt-32/s_log1pf.c (__log1pf): Likewise.
	* sysdeps/ieee754/flt-32/s_tanhf.c (__tanhf): Likewise.
	* sysdeps/ieee754/ldbl-128/e_asinl.c (__ieee754_asinl): Likewise.
	* sysdeps/ieee754/ldbl-128/e_atanhl.c (__ieee754_atanhl):
	Likewise.
	* sysdeps/ieee754/ldbl-128/e_expl.c (__ieee754_expl): Use
	math_check_force_underflow_nonneg.
	* sysdeps/ieee754/ldbl-128/e_gammal_r.c (__ieee754_gammal_r):
	Likewise.
	* sysdeps/ieee754/ldbl-128/e_j1l.c (__ieee754_j1l): Use
	math_check_force_underflow.
	* sysdeps/ieee754/ldbl-128/e_jnl.c (__ieee754_jnl): Likewise.
	* sysdeps/ieee754/ldbl-128/e_sinhl.c (__ieee754_sinhl): Likewise.
	* sysdeps/ieee754/ldbl-128/k_sincosl.c (__kernel_sincosl):
	Likewise.
	* sysdeps/ieee754/ldbl-128/k_sinl.c (__kernel_sinl): Likewise.
	* sysdeps/ieee754/ldbl-128/k_tanl.c (__kernel_tanl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_asinhl.c (__asinhl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_atanl.c (__atanl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_erfl.c (__erfl): Likewise.
	* sysdeps/ieee754/ldbl-128/s_expm1l.c (__expm1l): Likewise.
	* sysdeps/ieee754/ldbl-128/s_fmal.c (__fmal): Use math_force_eval
	instead of volatile.
	* sysdeps/ieee754/ldbl-128/s_log1pl.c (__log1pl): Use
	math_check_force_underflow.
	* sysdeps/ieee754/ldbl-128/s_tanhl.c (__tanhl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_asinl.c (__ieee754_asinl): Use
	math_check_force_underflow.
	* sysdeps/ieee754/ldbl-128ibm/e_atanhl.c (__ieee754_atanhl):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (__ieee754_gammal_r):
	Use math_check_force_underflow_nonneg.
	* sysdeps/ieee754/ldbl-128ibm/e_jnl.c (__ieee754_jnl): Use
	math_check_force_underflow.
	* sysdeps/ieee754/ldbl-128ibm/e_sinhl.c (__ieee754_sinhl):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/k_sincosl.c (__kernel_sincosl):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/k_sinl.c (__kernel_sinl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/k_tanl.c (__kernel_tanl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_asinhl.c (__asinhl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_atanl.c (__atanl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_erfl.c (__erfl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_tanhl.c (__tanhl): Likewise.
	* sysdeps/ieee754/ldbl-96/e_asinl.c (__ieee754_asinl): Likewise.
	* sysdeps/ieee754/ldbl-96/e_atanhl.c (__ieee754_atanhl): Likewise.
	* sysdeps/ieee754/ldbl-96/e_gammal_r.c (__ieee754_gammal_r): Use
	math_check_force_underflow_nonneg.
	* sysdeps/ieee754/ldbl-96/e_j1l.c (__ieee754_j1l): Use
	math_check_force_underflow.
	* sysdeps/ieee754/ldbl-96/e_jnl.c (__ieee754_jnl): Likewise.
	* sysdeps/ieee754/ldbl-96/e_sinhl.c (__ieee754_sinhl): Likewise.
	* sysdeps/ieee754/ldbl-96/k_sinl.c (__kernel_sinl): Likewise.
	* sysdeps/ieee754/ldbl-96/k_tanl.c (__kernel_tanl): Use
	math_check_force_underflow_nonneg.
	* sysdeps/ieee754/ldbl-96/s_asinhl.c (__asinhl): Use
	math_check_force_underflow.
	* sysdeps/ieee754/ldbl-96/s_erfl.c (__erfl): Likewise.
	* sysdeps/ieee754/ldbl-96/s_fmal.c (__fmal): Use math_force_eval
	instead of volatile.
	* sysdeps/ieee754/ldbl-96/s_tanhl.c (__tanhl): Use
	math_check_force_underflow.
2015-09-23 22:42:30 +00:00
Wilco Dijkstra
fe8c2b33ae Since we now inline isinf, isnan and isfinite in math.h, replace uses of __isinf_ns(l/f)
with isinf, and remove the unused inlines __isinf_ns(l/f), __isnan(f) and __finite(f).

2015-09-18  Wilco Dijkstra  <wdijkstr@arm.com>

        * include/math.h: Remove __isinf_ns, __isinf_nsf, __isinf_nsl.
        * math/Makefile: Remove isinf_ns.c.
        * math/divtc3.c (__divtc3): Replace __isinf_nsl with isinf.
        * math/multc3.c (__multc3): Likewise.
        * math/s_casin.c (__casin): Likewise.
        * math/s_casinf.c (__casinf): Likewise.
        * math/s_casinl.c (__casinl): Likewise.
        * math/s_cproj.c (__cproj): Likewise.
        * math/s_cprojf.c (__cprojf): Likewise.
        * math/s_cprojl.c (__cprofl): Likewise.
        * math/s_ctan.c (__ctan): Likewise.
        * math/s_ctanf.c (__ctanf): Likewise.
        * math/s_ctanh.c (__ctanh): Likewise.
        * math/s_ctanhf.c (__ctanhf): Likewise.
        * math/s_ctanhl.c (__ctanhl): Likewise.
        * math/s_ctanl.c (__ctanl): Likewise.
        * math/w_fmod.c (__fmod): Likewise.
        * math/w_fmodf.c (__fmodf): Likewise.
        * math/w_fmodl.c (_fmodl): Likewise.
        * math/w_remainder.c (__remainder): Likewise.
        * math/w_remainderf.c (__remainderf): Likewise.
        * math/w_remainderl.c (__remainderl): Likewise.
        * math/w_scalb.c (__scalb): Likewise.
        * math/w_scalbf.c (__scalbf): Likewise.
        * math/w_scalbl.c (__scalbl): Likewise.
        * sysdeps/ieee754/dbl-64/s_isinf_ns.c: Deleted file.
        * sysdeps/ieee754/dbl-64/s_sincos.c (__sincos): Replace __isinf_ns
        with isinf.
        * sysdeps/ieee754/dbl-64/wordsize-64/math_private.h: Deleted file.
        * sysdeps/ieee754/dbl-64/wordsize-64/s_isinf_ns.c: Deleted file.
        * sysdeps/ieee754/flt-32/e_exp2f.c (__ieee754_exp2f): Replace
        __isinf_nsf with isinf.
        * sysdeps/ieee754/flt-32/math_private.h: Deleted file.
        * sysdeps/ieee754/flt-32/s_isinf_nsf.c: Deleted file.
        * sysdeps/ieee754/ldbl-128/s_isinf_nsl.c: Deleted file.
        * sysdeps/ieee754/ldbl-128/s_sincosl.c (__sincosl): Replace __isinf_nsl
        with isinf.
        * sysdeps/ieee754/ldbl-128ibm/s_cprojl.c(__cprojll): Replace
        __isinf_nsl with isinf.
        * sysdeps/ieee754/ldbl-128ibm/s_ctanl.c(__ctanl): Replace __isinf_nsl
        with isinf.
        * sysdeps/ieee754/ldbl-128ibm/s_isinf_nsl.c: Deleted file.
        * sysdeps/ieee754/ldbl-128ibm/s_sincosl.c (__sincosl): Replace
        __isinf_nsl with isinf.
        * sysdeps/ieee754/ldbl-96/s_isinf_nsl.c: Deleted file.
        * sysdeps/ieee754/ldbl-96/s_sincosl.c (__sincosl): Replace __isinf_nsl
        with isinf.
2015-09-18 20:51:52 +01:00
Joseph Myers
903af5af9a Fix exp2 missing underflows (bug 16521).
Various exp2 implementations in glibc can miss underflow exceptions
when the scaling down part of the calculation is exact (or, in the x86
case, when the conversion from extended precision to the target
precision is exact).  This patch forces the exception in a similar way
to previous fixes.

The x86 exp2f changes may in fact not be needed for this purpose -
it's likely to be the case that no argument of type float has an exp2
result so close to an exact subnormal float value that it equals that
value when rounded to 64 bits (even taking account of variation
between different x86 implementations).  However, they are included
for consistency with the changes to exp2 and so as to fix the exp2f
part of bug 18875 by ensuring that excess range and precision is
removed from underflowing return values.

Tested for x86_64, x86 and mips64.

	[BZ #16521]
	[BZ #18875]
	* math/e_exp2l.c (__ieee754_exp2l): Force underflow exception for
	small results.
	* sysdeps/i386/fpu/e_exp2.S (dbl_min): New object.
	(MO): New macro.
	(__ieee754_exp2): For small results, force underflow exception and
	remove excess range and precision from return value.
	* sysdeps/i386/fpu/e_exp2f.S (flt_min): New object.
	(MO): New macro.
	(__ieee754_exp2f): For small results, force underflow exception
	and remove excess range and precision from return value.
	* sysdeps/i386/fpu/e_exp2l.S (ldbl_min): New object.
	(MO): New macro.
	(__ieee754_exp2l): Force underflow exception for small results.
	* sysdeps/ieee754/dbl-64/e_exp2.c (__ieee754_exp2): Likewise.
	* sysdeps/ieee754/flt-32/e_exp2f.c (__ieee754_exp2f): Likewise.
	* sysdeps/x86_64/fpu/e_exp2l.S (ldbl_min): New object.
	(MO): New macro.
	(__ieee754_exp2l): Force underflow exception for small results.
	* math/auto-libm-test-in: Add more tests or exp2.
	* math/auto-libm-test-out: Regenerated.
2015-09-14 22:00:12 +00:00
Joseph Myers
b59549574e Fix exp2, exp2f spurious underflows (bug 18219).
The dbl-64 and flt-32 implementations of exp2 functions produce
spurious underflow exceptions.  The underlying reason is the same in
both cases: the computation works as (2^a - 1)*2^b + 2^b for suitably
chosen a and b, where a has small magnitude so 2^a - 1 can be computed
with a low-degree polynomial approximation, and (2^a - 1)*2^b can
underflow even when the final result does not.  This patch fixes this
by adjusting the threshold for when scaling is used to avoid
intermediate underflow so it works for any possible value of a where
the final result would not underflow.

Tested for x86_64 and x86.

	[BZ #18219]
	* sysdeps/ieee754/dbl-64/e_exp2.c (__ieee754_exp2): Reduce
	threshold on absolute value of exponent for which scaling is used.
	* sysdeps/ieee754/flt-32/e_exp2f.c (__ieee754_exp2f): Likewise.
	* math/auto-libm-test-in: Add more tests of exp2.
	* math/auto-libm-test-out: Regenerated.
2015-06-23 14:35:18 +00:00
Joseph Myers
03d95bd483 Fix exp2 spurious underflows (bug 16560).
This patch fixes the remaining part of bug 16560, spurious underflows
from exp2 of arguments close to 0 (when the result is close to 1, so
should not underflow), by just using 1+x instead of a more complicated
calculation when the argument is sufficiently small.

Tested for x86_64, x86 and mips64.

	[BZ #16560]
	* math/e_exp2l.c [LDBL_MANT_DIG == 106] (LDBL_EPSILON): Undefine
	and redefine.
	(__ieee754_exp2l): Do not multiply small fractional parts by
	M_LN2l.
	* sysdeps/i386/fpu/e_exp2l.S (__ieee754_exp2l): Just add 1 to
	small argument.
	* sysdeps/ieee754/dbl-64/e_exp2.c (__ieee754_exp2): Likewise.
	* sysdeps/ieee754/flt-32/e_exp2f.c (__ieee754_exp2f): Likewise.
	* sysdeps/x86_64/fpu/e_exp2l.S (__ieee754_exp2l): Likewise.
	* math/auto-libm-test-in: Add more tests of exp2.
	* math/auto-libm-test-out: Regenerated.
2015-02-12 19:02:45 +00:00
Joseph Myers
b168057aaa Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
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
Richard Henderson
eb92c487b3 Create and use SET_RESTORE_ROUND{,_NOEX,_53BIT}{,F,L}. 2012-03-19 06:49:44 -07:00
Paul Eggert
59ba27a63a Replace FSF snail mail address with URLs. 2012-02-09 23:18:22 +00:00
Ulrich Drepper
d9a8d0abcc Use new internal libc_fe* interfaces in more functions 2011-10-18 15:11:31 -04:00
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
8ff1624522 * sysdeps/ieee754/dbl-64/e_exp2.c: Remove section attribute from
const variables, gas produces garbage.
	* sysdeps/ieee754/flt-32/e_exp2f.c: Likewise.
	* sysdeps/ieee754/flt-32/e_expf.c: Likewise.
	* sysdeps/ieee754/flt-32/s_expm1f.c: Likewise.
2006-01-09 23:24:14 +00:00
Ulrich Drepper
403a632578 * sysdeps/ieee754/dbl-64/halfulp.c: Mark tab54 as static and const.
* sysdeps/i386/fpu/e_expl.c: Mark c0 and c1 as const.
	* sysdeps/ieee754/flt-32/s_expm1f.c: Make sure huge and tiny end
	up in .rodata.
	* sysdeps/ieee754/flt-32/e_exp2f.c: Make sure TWO127 and TWOM100
	end up in .rodata.
	* sysdeps/ieee754/flt-32/e_expf.c: Likewise.
	* sysdeps/ieee754/dbl-64/e_exp2.c: Make sure TWO1023 and TWOM1000
	end up in .rodata.
2005-12-21 19:12:22 +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
Andreas Jaeger
41bdb6e20c Update to LGPL v2.1.
2001-07-06  Paul Eggert  <eggert@twinsun.com>

	* manual/argp.texi: Remove ignored LGPL copyright notice; it's
	not appropriate for documentation anyway.
	* manual/libc-texinfo.sh: "Library General Public License" ->
	"Lesser General Public License".

2001-07-06  Andreas Jaeger  <aj@suse.de>

	* All files under GPL/LGPL version 2: Place under LGPL version
	2.1.
2001-07-06 04:58:11 +00:00
Ulrich Drepper
601d294296 Update.
2001-06-04  Bruno Haible  <haible@clisp.cons.org>

	* iconv/loop.c (UNICODE_TAG_HANDLER): New macro.
	* iconv/gconv_simple.c (__gconv_transform_internal_ascii): Invoke
	UNICODE_TAG_HANDLER.
	(__gconv_transform_internal_ucs2): Likewise.
	(__gconv_transform_internal_ucs2reverse): Likewise.
	* iconvdata/8bit-gap.c (BODY for TO_LOOP): Invoke UNICODE_TAG_HANDLER.
	* iconvdata/8bit-generic.c (BODY for TO_LOOP): Likewise.
	* iconvdata/ansi_x3.110.c (BODY for TO_LOOP): Likewise.
	* iconvdata/big5.c (BODY for TO_LOOP): Likewise.
	* iconvdata/big5hkscs.c (BODY for TO_LOOP): Likewise.
	* iconvdata/cp1255.c (BODY for TO_LOOP): Likewise.
	* iconvdata/cp1258.c (BODY for TO_LOOP): Likewise.
	* iconvdata/euc-cn.c (BODY for TO_LOOP): Likewise.
	* iconvdata/euc-jp.c (BODY for TO_LOOP): Likewise.
	* iconvdata/euc-kr.c (BODY for TO_LOOP): Likewise.
	* iconvdata/euc-tw.c (BODY for TO_LOOP): Likewise.
	* iconvdata/gbk.c (BODY for TO_LOOP): Likewise.
	* iconvdata/ibm930.c (BODY for TO_LOOP): Likewise.
	* iconvdata/ibm932.c (BODY for TO_LOOP): Likewise.
	* iconvdata/ibm933.c (BODY for TO_LOOP): Likewise.
	* iconvdata/ibm935.c (BODY for TO_LOOP): Likewise.
	* iconvdata/ibm937.c (BODY for TO_LOOP): Likewise.
	* iconvdata/ibm939.c (BODY for TO_LOOP): Likewise.
	* iconvdata/ibm943.c (BODY for TO_LOOP): Likewise.
	* iconvdata/iso646.c (BODY for TO_LOOP): Likewise.
	* iconvdata/iso8859-1.c (BODY for TO_LOOP): Likewise.
	* iconvdata/iso_6937.c (BODY for TO_LOOP): Likewise.
	* iconvdata/iso_6937-2.c (BODY for TO_LOOP): Likewise.
	* iconvdata/iso-2022-cn.c (BODY for TO_LOOP): Likewise.
	* iconvdata/iso-2022-cn-ext.c (BODY for TO_LOOP): Likewise.
	* iconvdata/iso-2022-kr.c (BODY for TO_LOOP): Likewise.
	* iconvdata/johab.c (BODY for TO_LOOP): Likewise.
	* iconvdata/sjis.c (BODY for TO_LOOP): Likewise.
	* iconvdata/t.61.c (BODY for TO_LOOP): Likewise.
	* iconvdata/uhc.c (BODY for TO_LOOP): Likewise.
	* iconvdata/unicode.c (BODY for TO_LOOP): Likewise.
	* iconvdata/iso-2022-jp.c (TAG_none, TAG_language, TAG_language_j,
	TAG_language_ja, TAG_language_k, TAG_language_ko, TAG_language_z,
	TAG_language_zh, CURRENT_TAG_MASK): New enum values.
	(EMIT_SHIFT_TO_INIT): Don't emit an escape sequence if ASCII_set
	is already selected but set2 or tag are set.
	(conversion): New enum type.
	(cvlist_t): New type.
	(CVLIST, CVLIST_FIRST, CVLIST_REST): New macros.
	(conversion_lists): New array.
	(BODY for TO_LOOP): Keep track of Unicode 3.1 language tag. If "ja",
	prefer conversion to Japanese character sets. If "zh", prefer
	conversion to GB2312. If "ko", prefer conversion to KSC5601. Small
	optimizations.
	(INIT_PARAMS): Add tag.
	(UPDATE_PARAMS): Add tag.

2001-06-04  Bruno Haible  <haible@clisp.cons.org>

	* locale/programs/locfile.c (write_locale_data): Before creat(),
	unlink the file, to avoid crashing the processes that mmap it.  Change
	a double slash to a single slash.  Free fname in case of error return.

2001-06-02  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/i386/fpu/s_frexpl.S (__frexpl): Mostly revert 2000-12-03
	changes, do the special handling for denormal numbers, not for
	normalized numbers (patch by <trevin@xmission.com>).

	* math/test-misc.c (main): Test frexpl with denormal arguments.

2001-06-04  Jakub Jelinek  <jakub@redhat.com>

	* math/libm-test.inc (llround_test): Add two new llround tests.
	* sysdeps/ieee754/ldbl-96/s_llroundl.c (__llroundl): Don't allow
	overflow when rounding away from zero.

2001-06-04  Jakub Jelinek  <jakub@redhat.com>

	* math/Makefile (libm-calls): Add e_log2, w_log2, remove s_log2.
	* math/math_private.h (__ieee754_log2, __ieee754_log2f,
	__ieee754_log2l): New prototypes.
	* sysdeps/generic/w_log2.c: New file.
	* sysdeps/generic/w_log2f.c: New file.
	* sysdeps/generic/w_log2l.c: New file.
	* sysdeps/generic/s_log2l.c: Move...
	* sysdeps/generic/e_log2l.c: ...to here. Rename to __ieee754_log2l.
	* sysdeps/ieee754/k_standard.c (__kernel_standard): Handle log2(0)
	and log2(x < 0).
	* sysdeps/i386/fpu/s_log2.S: Move...
	* sysdeps/i386/fpu/e_log2.S: ...to here. Rename to __ieee754_log2.
	* sysdeps/i386/fpu/s_log2f.S: Move...
	* sysdeps/i386/fpu/e_log2f.S: ...to here. Rename to __ieee754_log2f.
	* sysdeps/i386/fpu/s_log2l.S: Move...
	* sysdeps/i386/fpu/e_log2l.S: ...to here. Rename to __ieee754_log2l.
	* sysdeps/m68k/fpu/s_log2.S: Move...
	* sysdeps/m68k/fpu/e_log2.S: ...to here. Rename to __ieee754_log2.
	* sysdeps/m68k/fpu/s_log2f.S: Move...
	* sysdeps/m68k/fpu/e_log2f.S: ...to here. Rename to __ieee754_log2f.
	* sysdeps/m68k/fpu/s_log2l.S: Move...
	* sysdeps/m68k/fpu/e_log2l.S: ...to here. Rename to __ieee754_log2l.
	* sysdeps/ieee754/dbl-64/s_log2.c: Move...
	* sysdeps/ieee754/dbl-64/e_log2.c: ...to here. Rename to
	__ieee754_log2.
	* sysdeps/ieee754/flt-32/s_log2f.c: Move...
	* sysdeps/ieee754/flt-32/e_log2f.c: ...to here. Rename to
	__ieee754_log2f.

2001-06-04  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/generic/w_exp2.c (u_threshold): Lower threshold so that
	even arguments which result in denormalized exp2 are accepted.
	(__exp2): Arguments equal to u_threshold already result into
	underflow.
	* sysdeps/generic/w_exp2f.c (u_threshold, __exp2f): Likewise.
	* sysdeps/generic/w_exp2l.c (u_threshold, __exp2l): Likewise.
	* sysdeps/ieee754/dbl-64/e_exp2.c (__ieee754_exp2): Lomark was too
	low, with corrected lowmark use greaterequal, not greater.
	* sysdeps/ieee754/flt-32/e_exp2f.c (__ieee754_exp2f): Likewise.

2001-06-04  Jakub Jelinek  <jakub@redhat.com>

	* math/libm-test.inc (ilogb_test): Test that ilogb(+-Inf) == INT_MAX.
	* sysdeps/i386/fpu/s_ilogb.S (__ilogb): Return INT_MAX for +-Inf.
	* sysdeps/i386/fpu/s_ilogbf.S (__ilogbf): Likewise.
	* sysdeps/i386/fpu/s_ilogbl.S (__ilogbl): Likewise.
	* sysdeps/ieee754/dbl-64/s_ilogb.c (__ilogb): Likewise.
	* sysdeps/ieee754/flt-32/s_ilogbf.c (__ilogbf): Likewise.
	* sysdeps/ieee754/ldbl-128/s_ilogbl.c (__ilogbl): Likewise.
	* sysdeps/ieee754/ldbl-96/s_ilogbl.c (__ilogbl): Likewise.

2001-06-04  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/generic/w_coshl.c (__coshl): Test if finite argument
	gave non-finite result instead of using constant in generic
	version.
	* sysdeps/generic/w_coshf.c (__coshf): Likewise.
	* sysdeps/generic/w_cosh.c (__cosh): Likewise.
	* sysdeps/generic/w_exp10.c (o_threshold, u_threshold): Remove.
	(__exp10): Test if finite argument gave non-finite result.
	* sysdeps/generic/w_exp10f.c (o_threshold, u_threshold, __exp10f):
	Likewise.
	* sysdeps/generic/w_exp10l.c (o_threshold, u_threshold, __exp10l):
	Likewise.
2001-06-04  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/ieee754/ldbl-96/e_coshl.c (__ieee754_coshl): Fix
	overflow threshold constant (log(LDBL_MAX)+M_LN2l).

2001-05-29  Bruno Haible  <haible@clisp.cons.org>

	* locale/programs/ld-ctype.c (idx_table): New struct type.
	(idx_table_init, idx_table_get, idx_table_add): New functions.
	(MAX_CHARNAMES_IDX): Remove macro.
	(locale_ctype_t): Change type of charnames_idx field.
	(ctype_startup): Change initialization of charnames_idx field.
	(find_idx): Use idx_table_get and idx_table_add for speed.

	* locale/programs/charmap.c (charmap_new_char): Fix ucs4 value
	computation of characters in a range.

2001-05-29  Bruno Haible  <haible@clisp.cons.org>

	* iconvdata/gb18030.c (__fourbyte_to_ucs1): Add mappings for <U03F4>,
	<U03F5>.
	(__ucs_to_gb18030_tab1): Likewise.
	(BODY for FROM_LOOP): Add mapping for <U00010000>..<U0010FFFF>.
	(BODY for TO_LOOP): Likewise.
	* iconvdata/tst-table-charmap.sh: Update for charmaps containing
	<U00xxxxxx> syntax.
	* iconvdata/tst-table-from.c (bmp_only): New variable.
	(utf8_decode): If bmp_only, don't return characters outside Unicode
	plane 0.
	(main): When testing UTF-8 or GB18030, set bmp_only to 1. Don't print
	a conversion line if utf8_decode returns NULL.
	* iconvdata/tst-table-to.c (main): When testing encodings other than
	UTF-8 and GB18030, loop upto U+30000 instead of U+10000. Use UTF-8
	instead of UCS-2 as input.
	* iconvdata/tst-table.sh: For GB18030, use only the part < 0x10000
	of the charmap.

2001-05-29  Bruno Haible  <haible@clisp.cons.org>

	* iconvdata/cns11643l1.c: Update to Unicode 3.1.
	(__cns11643l1_to_ucs4_tab): Regenerated.
	(__cns11643l1_from_ucs4_tab12): Regenerated.
	* iconvdata/cns11643.c: Update to Unicode 3.1.
	(__cns11643l14_to_ucs4_tab): Remove array.
	(__cns11643l3_to_ucs4_tab, __cns11643l4_to_ucs4_tab,
	__cns11643l5_to_ucs4_tab, __cns11643l6_to_ucs4_tab,
	__cns11643l7_to_ucs4_tab, __cns11643l15_to_ucs4_tab): New arrays.
	(__cns11643_from_ucs4p0_tab): Renamed from __cns11643_from_ucs4_tab.
	(__cns11643_from_ucs4p2_tab): New array.
	* iconvdata/cns11643.h (__cns11643l14_to_ucs4_tab): Remove declaration.
	(__cns11643l3_to_ucs4_tab, __cns11643l4_to_ucs4_tab,
	__cns11643l5_to_ucs4_tab, __cns11643l6_to_ucs4_tab,
	__cns11643l7_to_ucs4_tab, __cns11643l15_to_ucs4_tab): New declarations.
	(cns11643_to_ucs4): Treat planes 3, 4, 5, 6, 7, 15 instead of 14.
	(__cns11643_from_ucs4_tab): Remove declaration.
	(__cns11643_from_ucs4p0_tab, __cns11643_from_ucs4p2_tab): New
	declarations.
	(ucs4_to_cns11643): Update for new arrays. Treat U+3400..U+4DFF and
	U+20000..U+2A6D6.
	* iconvdata/cns11643l2.h (__cns11643_from_ucs4_tab): Remove
	declaration.
	(__cns11643_from_ucs4p0_tab): New declaration.
	(ucs4_to_cns11643l2): Update for new arrays.
	* iconvdata/iso-2022-cn-ext.c (BODY for FROM_LOOP): Handle planes
	3 to 7.
	(BODY for TO_LOOP): Handle planes 3 to 7, instead of plane 14.
	* iconvdata/EUC-TW.irreversible: New file.
	* iconvdata/tst-table.sh: Use it.
	* iconvdata/Makefile (distribute): Add CP1255.irreversible,
	CP1258.irreversible, EUC-TW.irreversible.

2001-05-29  Bruno Haible  <haible@clisp.cons.org>

	* locale/C-translit.h.in: Add transliterations for new Unicode 3.1
	mathematical symbols.
2001-06-06 12:55:46 +00:00
Ulrich Drepper
63640cb777 Update.
2001-02-17  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/generic/s_exp2l.c: Renamed to...
	* sysdeps/generic/s_exp2l.c: ...this.   New file.
	* sysdeps/i386/fpu/s_exp2.S: Renamed to...
	* sysdeps/i386/fpu/s_exp2.S: ...this.   New file.
	* sysdeps/i386/fpu/s_exp2f.S: Renamed to...
	* sysdeps/i386/fpu/s_exp2f.S: ...this.   New file.
	* sysdeps/i386/fpu/s_exp2l.S: Renamed to...
	* sysdeps/i386/fpu/s_exp2l.S: ...this.   New file.
	* sysdeps/ieee754/flt-32/s_exp2f.c: Renamed to...
	* sysdeps/ieee754/flt-32/s_exp2f.c: ...this.   New file.
	* sysdeps/ieee754/dbl-64/s_exp2.c: Renamed to...
	* sysdeps/ieee754/dbl-64/s_exp2.c: ...this.   New file.
	* sysdeps/m68k/fpu/s_exp2.c: Renamed to...
	* sysdeps/m68k/fpu/s_exp2.c: ...this.   New file.
	* sysdeps/m68k/fpu/s_exp2f.c: Renamed to...
	* sysdeps/m68k/fpu/s_exp2f.c: ...this.   New file.
	* sysdeps/m68k/fpu/s_exp2l.c: Renamed to...
	* sysdeps/m68k/fpu/s_exp2l.c: ...this.   New file.
2001-02-17 16:54:13 +00:00