diff options
author | Ulrich Drepper <drepper@redhat.com> | 1999-07-14 00:54:57 +0000 |
---|---|---|
committer | Ulrich Drepper <drepper@redhat.com> | 1999-07-14 00:54:57 +0000 |
commit | abfbdde177c3a7155070dda1b2cdc8292054cc26 (patch) | |
tree | e021306b596381fbf8311d2b7eb294e918ff17c8 /sysdeps/libm-ieee754/s_remquol.c | |
parent | 86421aa57ecfd70963ae66848bd6a6dd3b8e0fe6 (diff) | |
download | glibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.tar.gz |
Update.
Diffstat (limited to 'sysdeps/libm-ieee754/s_remquol.c')
-rw-r--r-- | sysdeps/libm-ieee754/s_remquol.c | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/sysdeps/libm-ieee754/s_remquol.c b/sysdeps/libm-ieee754/s_remquol.c deleted file mode 100644 index 88ff298eb6..0000000000 --- a/sysdeps/libm-ieee754/s_remquol.c +++ /dev/null @@ -1,109 +0,0 @@ -/* Compute remainder and a congruent to the quotient. - Copyright (C) 1997 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <math.h> - -#include "math_private.h" - - -static const long double zero = 0.0; - - -long double -__remquol (long double x, long double p, int *quo) -{ - int32_t ex,ep,hx,hp; - u_int32_t sx,lx,lp; - int cquo,qs; - - GET_LDOUBLE_WORDS (ex, hx, lx, x); - GET_LDOUBLE_WORDS (ep, hp, lp, p); - sx = ex & 0x8000; - qs = (sx ^ (ep & 0x8000)) >> 15; - ep &= 0x7fff; - ex &= 0x7fff; - - /* Purge off exception values. */ - if ((ep | hp | lp) == 0) - return (x * p) / (x * p); /* p = 0 */ - if ((ex == 0x7fff) /* x not finite */ - || ((ep == 0x7fff) /* p is NaN */ - && ((hp | lp) != 0))) - return (x * p) / (x * p); - - if (ep <= 0x7ffb) - x = __ieee754_fmodl (x, 8 * p); /* now x < 8p */ - - if (((ex - ep) | (hx - hp) | (lx - lp)) == 0) - { - *quo = qs ? -1 : 1; - return zero * x; - } - - x = fabsl (x); - p = fabsl (p); - cquo = 0; - - if (x >= 4 * p) - { - x -= 4 * p; - cquo += 4; - } - if (x >= 2 * p) - { - x -= 2 * p; - cquo += 2; - } - - if (ep < 0x0002) - { - if (x + x > p) - { - x -= p; - ++cquo; - if (x + x >= p) - { - x -= p; - ++cquo; - } - } - } - else - { - long double p_half = 0.5 * p; - if (x > p_half) - { - x -= p; - ++cquo; - if (x >= p_half) - { - x -= p; - ++cquo; - } - } - } - - *quo = qs ? -cquo : cquo; - - if (sx) - x = -x; - return x; -} -weak_alias (__remquol, remquol) |