diff options
Diffstat (limited to 'sysdeps/ieee754/ldbl-128ibm/e_remainderl.c')
| -rw-r--r-- | sysdeps/ieee754/ldbl-128ibm/e_remainderl.c | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/e_remainderl.c b/sysdeps/ieee754/ldbl-128ibm/e_remainderl.c deleted file mode 100644 index 68b8fb3519..0000000000 --- a/sysdeps/ieee754/ldbl-128ibm/e_remainderl.c +++ /dev/null @@ -1,81 +0,0 @@ -/* e_fmodl.c -- long double 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. - * ==================================================== - */ - -/* __ieee754_remainderl(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 fmodl() return x-[x/p]chopped*p exactlp. - */ - -#include <math.h> -#include <math_private.h> - -static const long double zero = 0.0L; - - -long double -__ieee754_remainderl(long double x, long double p) -{ - int64_t hx,hp; - u_int64_t sx,lx,lp; - long double p_half; - double xhi, xlo, phi, plo; - - ldbl_unpack (x, &xhi, &xlo); - EXTRACT_WORDS64 (hx, xhi); - EXTRACT_WORDS64 (lx, xlo); - ldbl_unpack (p, &phi, &plo); - EXTRACT_WORDS64 (hp, phi); - EXTRACT_WORDS64 (lp, plo); - sx = hx&0x8000000000000000ULL; - lp ^= hp & 0x8000000000000000ULL; - hp &= 0x7fffffffffffffffLL; - lx ^= sx; - hx &= 0x7fffffffffffffffLL; - if (lp == 0x8000000000000000ULL) - lp = 0; - if (lx == 0x8000000000000000ULL) - lx = 0; - - /* purge off exception values */ - if(hp==0) return (x*p)/(x*p); /* p = 0 */ - if((hx>=0x7ff0000000000000LL)|| /* x not finite */ - (hp>0x7ff0000000000000LL)) /* p is NaN */ - return (x*p)/(x*p); - - - if (hp<=0x7fdfffffffffffffLL) x = __ieee754_fmodl(x,p+p); /* now x < 2p */ - if (((hx-hp)|(lx-lp))==0) return zero*x; - x = fabsl(x); - p = fabsl(p); - if (hp<0x0020000000000000LL) { - if(x+x>p) { - x-=p; - if(x+x>=p) x -= p; - } - } else { - p_half = 0.5L*p; - if(x>p_half) { - x-=p; - if(x>=p_half) x -= p; - } - } - if (sx) - x = -x; - return x; -} -strong_alias (__ieee754_remainderl, __remainderl_finite) |