aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/libm-ieee754/s_remquo.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/libm-ieee754/s_remquo.c')
-rw-r--r--sysdeps/libm-ieee754/s_remquo.c113
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