diff options
Diffstat (limited to 'sysdeps/ieee754/flt-32/s_remquof.c')
-rw-r--r-- | sysdeps/ieee754/flt-32/s_remquof.c | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/sysdeps/ieee754/flt-32/s_remquof.c b/sysdeps/ieee754/flt-32/s_remquof.c deleted file mode 100644 index 8e398dc6c5..0000000000 --- a/sysdeps/ieee754/flt-32/s_remquof.c +++ /dev/null @@ -1,110 +0,0 @@ -/* Compute remainder and a congruent to the quotient. - Copyright (C) 1997-2017 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 Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <math.h> - -#include <math_private.h> - - -static const float zero = 0.0; - - -float -__remquof (float x, float y, int *quo) -{ - int32_t hx,hy; - u_int32_t sx; - int cquo, qs; - - GET_FLOAT_WORD (hx, x); - GET_FLOAT_WORD (hy, y); - sx = hx & 0x80000000; - qs = sx ^ (hy & 0x80000000); - hy &= 0x7fffffff; - hx &= 0x7fffffff; - - /* Purge off exception values. */ - if (hy == 0) - return (x * y) / (x * y); /* y = 0 */ - if ((hx >= 0x7f800000) /* x not finite */ - || (hy > 0x7f800000)) /* y is NaN */ - return (x * y) / (x * y); - - if (hy <= 0x7dffffff) - x = __ieee754_fmodf (x, 8 * y); /* now x < 8y */ - - if ((hx - hy) == 0) - { - *quo = qs ? -1 : 1; - return zero * x; - } - - x = fabsf (x); - y = fabsf (y); - cquo = 0; - - if (hy <= 0x7e7fffff && x >= 4 * y) - { - x -= 4 * y; - cquo += 4; - } - if (hy <= 0x7effffff && x >= 2 * y) - { - x -= 2 * y; - cquo += 2; - } - - if (hy < 0x01000000) - { - if (x + x > y) - { - x -= y; - ++cquo; - if (x + x >= y) - { - x -= y; - ++cquo; - } - } - } - else - { - float y_half = 0.5 * y; - if (x > y_half) - { - x -= y; - ++cquo; - if (x >= y_half) - { - x -= y; - ++cquo; - } - } - } - - *quo = qs ? -cquo : cquo; - - /* Ensure correct sign of zero result in round-downward mode. */ - if (x == 0.0f) - x = 0.0f; - if (sx) - x = -x; - return x; -} -weak_alias (__remquof, remquof) |