diff options
Diffstat (limited to 'sysdeps/libm-ieee754/s_remquo.c')
-rw-r--r-- | sysdeps/libm-ieee754/s_remquo.c | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/sysdeps/libm-ieee754/s_remquo.c b/sysdeps/libm-ieee754/s_remquo.c deleted file mode 100644 index 6e32efbba2..0000000000 --- a/sysdeps/libm-ieee754/s_remquo.c +++ /dev/null @@ -1,113 +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 double zero = 0.0; - - -double -__remquo (double x, double y, int *quo) -{ - int32_t hx,hy; - u_int32_t sx,lx,ly; - int cquo, qs; - - EXTRACT_WORDS (hx, lx, x); - EXTRACT_WORDS (hy, ly, y); - sx = hx & 0x80000000; - qs = sx ^ (hy & 0x80000000); - hy &= 0x7fffffff; - hx &= 0x7fffffff; - - /* Purge off exception values. */ - if ((hy | ly) == 0) - return (x * y) / (x * y); /* y = 0 */ - if ((hx >= 0x7ff00000) /* x not finite */ - || ((hy >= 0x7ff00000) /* p is NaN */ - && (((hy - 0x7ff00000) | ly) != 0))) - return (x * y) / (x * y); - - if (hy <= 0x7fbfffff) - x = __ieee754_fmod (x, 8 * y); /* now x < 8y */ - - if (((hx - hy) | (lx - ly)) == 0) - { - *quo = qs ? -1 : 1; - return zero * x; - } - - x = fabs (x); - y = fabs (y); - cquo = 0; - - if (x >= 4 * y) - { - x -= 4 * y; - cquo += 4; - } - if (x >= 2 * y) - { - x -= 2 * y; - cquo += 2; - } - - if (hy < 0x00200000) - { - if (x + x > y) - { - x -= y; - ++cquo; - if (x + x >= y) - { - x -= y; - ++cquo; - } - } - } - else - { - double y_half = 0.5 * y; - if (x > y_half) - { - x -= y; - ++cquo; - if (x >= y_half) - { - x -= y; - ++cquo; - } - } - } - - *quo = qs ? -cquo : cquo; - - if (sx) - x = -x; - return x; -} -weak_alias (__remquo, remquo) -#ifdef NO_LONG_DOUBLE -strong_alias (__remquo, __remquol) -weak_alias (__remquo, remquol) -#endif |