f029f4be17
2012-11-01 Tobias Burnus <burnus@net-b.de>
* Makefile.am (libquadmath_la_SOURCES): Add new math/* files.
* Makefile.in: Regenerated.
* math/acoshq.c: Update comment.
* math/acosq.c: Ditto.
* math/asinhq.c: Ditto.
* math/asinq.c: Ditto.
* math/atan2q.c: Ditto.
* math/atanhq.c: Ditto.
* math/ceilq.c: Ditto.
* math/copysignq.c: Ditto.
* math/cosq.c: Ditto.
* math/coshq.c: Ditto.
* math/erfq.c: Ditto.
* math/fabsq.c: Ditto.
* math/finiteq.c: Ditto.
* math/floorq.c: Ditto.
* math/fmodq.c: Ditto.
* math/frexpq.c: Ditto.
* math/isnanq.c: Ditto.
* math/j0q.c: Ditto.
* math/j1q.c: Ditto.
* math/ldexpq.c: Ditto.
* math/llroundq.c: Ditto.
* math/log10q.c: Ditto.
* math/log1pq.c: Ditto.
* math/log2q.c: Ditto.
* math/logq.c: Ditto.
* math/lroundq.c: Ditto.
* math/modfq.c: Ditto.
* math/nextafterq.c: Ditto.
* math/powq.c: Ditto.
* math/rem_pio2q.c: Ditto.
* math/remainderq.c: Ditto.
* math/rintq.c: Ditto.
* math/roundq.c: Ditto.
* math/scalblnq.c: Ditto.
* math/scalbnq.c: Ditto.
* math/sincosq_kernel.c: Ditto.
* math/sinq.c: Ditto.
* math/tanq.c: Ditto.
* math/expq.c: Ditto.
(__expq_table, expq): Renamed local array from __expl_table.
* math/cosq_kernel.c (__quadmath_kernel_cosq): Fix sign
* handling.
* math/cacoshq.c: Changes from GLIBC; fix returned sign.
* math/casinhq.c: Changes from GLIBC to fix special-case.
* math/cbrtq.c: Use modified GLIBC version.
* math/complex.c (ccoshd, cexpq, clog10q, clogq, csinhq, csinq,
ctanhq, ctanq): Moved to separates files.
(mult_c128, div_c128): Removed no longer needed functions.
(cexpiq): Call sincosq instead of sinq and cosq.
(cosq): Call cosh(-re,im) instead of cosq/sinq/sinh/cosh.
* math/ccoshq.c (ccoshq): New file, moved from complex.c and
modified based on GLIBC.
* math/cexpq.c (cexp): Ditto.
* math/clog10q.c (clog10q): Ditto.
* math/clogq.c (clogq): Ditto.
* math/csinhq.c: Ditto.
* math/csinq.c: Ditto.
* math/csqrtq.c: Ditto.
* math/ctanhq.c: Ditto.
* math/ctanq.c: Ditto.
* math/fmaq.c (fmaq): Port TININESS_AFTER_ROUNDING handling
from GLIBC.
* math/ilogbq.c (ilogbq): Add errno = EDOM handling.
* math/isinf_nsq.c (__quadmath_isinf_nsq): New file, ported
from GLIBC.
* math/lgammaq.c (lgammaq): Add signgam handling.
* math/sinhq.c (sinhq): Fix sign handling.
* math/sinq_kernel.c (__quadmath_kernel_sinq): Ditto.
* math/tgammaq.c (tgammaq): Ditto.
* math/x2y2m1q.c: New file.
* quadmath-imp.h (TININESS_AFTER_ROUNDING): New define.
(__quadmath_x2y2m1q, __quadmath_isinf_nsq): New prototypes.
From-SVN: r193063
68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
/* fmodq.c -- __float128 version of e_fmod.c.
|
|
* Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
|
|
*/
|
|
/*
|
|
* ====================================================
|
|
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
|
*
|
|
* Developed at SunPro, a Sun Microsystems, Inc. business.
|
|
* Permission to use, copy, modify, and distribute this
|
|
* software is freely granted, provided that this notice
|
|
* is preserved.
|
|
* ====================================================
|
|
*/
|
|
|
|
/* remainderq(x,p)
|
|
* Return :
|
|
* returns x REM p = x - [x/p]*p as if in infinite
|
|
* precise arithmetic, where [x/p] is the (infinite bit)
|
|
* integer nearest x/p (in half way case choose the even one).
|
|
* Method :
|
|
* Based on fmodq() return x-[x/p]chopped*p exactlp.
|
|
*/
|
|
|
|
#include "quadmath-imp.h"
|
|
|
|
static const __float128 zero = 0.0Q;
|
|
|
|
__float128
|
|
remainderq (__float128 x, __float128 p)
|
|
{
|
|
int64_t hx,hp;
|
|
uint64_t sx,lx,lp;
|
|
__float128 p_half;
|
|
|
|
GET_FLT128_WORDS64(hx,lx,x);
|
|
GET_FLT128_WORDS64(hp,lp,p);
|
|
sx = hx&0x8000000000000000ULL;
|
|
hp &= 0x7fffffffffffffffLL;
|
|
hx &= 0x7fffffffffffffffLL;
|
|
|
|
/* purge off exception values */
|
|
if((hp|lp)==0) return (x*p)/(x*p); /* p = 0 */
|
|
if((hx>=0x7fff000000000000LL)|| /* x not finite */
|
|
((hp>=0x7fff000000000000LL)&& /* p is NaN */
|
|
(((hp-0x7fff000000000000LL)|lp)!=0)))
|
|
return (x*p)/(x*p);
|
|
|
|
if (hp<=0x7ffdffffffffffffLL) x = fmodq (x,p+p); /* now x < 2p */
|
|
if (((hx-hp)|(lx-lp))==0) return zero*x;
|
|
x = fabsq(x);
|
|
p = fabsq(p);
|
|
if (hp<0x0002000000000000LL) {
|
|
if(x+x>p) {
|
|
x-=p;
|
|
if(x+x>=p) x -= p;
|
|
}
|
|
} else {
|
|
p_half = 0.5Q*p;
|
|
if(x>p_half) {
|
|
x-=p;
|
|
if(x>=p_half) x -= p;
|
|
}
|
|
}
|
|
GET_FLT128_MSW64(hx,x);
|
|
SET_FLT128_MSW64(x,hx^sx);
|
|
return x;
|
|
}
|