diff options
Diffstat (limited to 'sysdeps/libm-ieee754/s_roundl.c')
| -rw-r--r-- | sysdeps/libm-ieee754/s_roundl.c | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/sysdeps/libm-ieee754/s_roundl.c b/sysdeps/libm-ieee754/s_roundl.c deleted file mode 100644 index d7482b9b7c..0000000000 --- a/sysdeps/libm-ieee754/s_roundl.c +++ /dev/null @@ -1,106 +0,0 @@ -/* Round long double to integer away from zero. - 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 huge = 1.0e4930; - - -long double -__roundl (long double x) -{ - int32_t j0; - u_int32_t se, i1, i0; - - GET_LDOUBLE_WORDS (se, i0, i1, x); - j0 = (se & 0x7fff) - 0x3fff; - if (j0 < 31) - { - if (j0 < 0) - { - if (huge + x > 0.0) - { - se &= 0x8000; - i0 = i1 = 0; - if (j0 == -1) - { - se |= 0x3fff; - i0 = 0x80000000; - } - } - } - else - { - u_int32_t i = 0x7fffffff >> j0; - if (((i0 & i) | i1) == 0) - /* X is integral. */ - return x; - if (huge + x > 0.0) - { - /* Raise inexact if x != 0. */ - u_int32_t j = i0 + (0x40000000 >> j0); - if (j < i0) - se += 1; - i0 = (j & ~i) | 0x80000000; - i1 = 0; - } - } - } - else if (j0 > 62) - { - if (j0 == 0x4000) - /* Inf or NaN. */ - return x + x; - else - return x; - } - else - { - u_int32_t i = 0xffffffff >> (j0 - 31); - if ((i1 & i) == 0) - /* X is integral. */ - return x; - - if (huge + x > 0.0) - { - /* Raise inexact if x != 0. */ - u_int32_t j = i1 + (1 << (62 - j0)); - if (j < i1) - { - u_int32_t k = i0 + 1; - if (k < i0) - { - se += 1; - k |= 0x80000000; - } - i0 = k; - } - i1 = j; - } - i1 &= ~i; - } - - SET_LDOUBLE_WORDS (x, se, i0, i1); - return x; -} -weak_alias (__roundl, roundl) |