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_lround.c | |
parent | 86421aa57ecfd70963ae66848bd6a6dd3b8e0fe6 (diff) | |
download | glibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.tar.gz glibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.tar.xz glibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.zip |
Update.
Diffstat (limited to 'sysdeps/libm-ieee754/s_lround.c')
-rw-r--r-- | sysdeps/libm-ieee754/s_lround.c | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/sysdeps/libm-ieee754/s_lround.c b/sysdeps/libm-ieee754/s_lround.c deleted file mode 100644 index 49be12f03b..0000000000 --- a/sysdeps/libm-ieee754/s_lround.c +++ /dev/null @@ -1,78 +0,0 @@ -/* Round double value to long int. - 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" - - -long int -__lround (double x) -{ - int32_t j0; - u_int32_t i1, i0; - long int result; - int sign; - - EXTRACT_WORDS (i0, i1, x); - j0 = ((i0 >> 20) & 0x7ff) - 0x3ff; - sign = (i0 & 0x80000000) != 0 ? -1 : 1; - i0 &= 0xfffff; - i0 |= 0x100000; - - if (j0 < 20) - { - if (j0 < 0) - return j0 < -1 ? 0 : sign; - else - { - i0 += 0x80000 >> j0; - - result = i0 >> (20 - j0); - } - } - else if (j0 < (int32_t) (8 * sizeof (long int)) - 1) - { - if (j0 >= 52) - result = ((long int) i0 << (j0 - 20)) | (i1 << (j0 - 52)); - else - { - u_int32_t j = i1 + (0x80000000 >> (j0 - 20)); - if (j < i1) - ++i0; - - result = ((long int) i0 << (j0 - 20)) | (j >> (52 - j0)); - } - } - else - { - /* The number is too large. It is left implementation defined - what happens. */ - return (long int) x; - } - - return sign * result; -} - -weak_alias (__lround, lround) -#ifdef NO_LONG_DOUBLE -strong_alias (__lround, __lroundl) -weak_alias (__lround, lroundl) -#endif |