diff options
Diffstat (limited to 'sysdeps/ieee754/dbl-64/s_trunc.c')
-rw-r--r-- | sysdeps/ieee754/dbl-64/s_trunc.c | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_trunc.c b/sysdeps/ieee754/dbl-64/s_trunc.c deleted file mode 100644 index 730c1b377c..0000000000 --- a/sysdeps/ieee754/dbl-64/s_trunc.c +++ /dev/null @@ -1,62 +0,0 @@ -/* Truncate argument to nearest integral value not larger than the argument. - 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> - - -double -__trunc (double x) -{ - int32_t i0, j0; - u_int32_t i1; - int sx; - - EXTRACT_WORDS (i0, i1, x); - sx = i0 & 0x80000000; - j0 = ((i0 >> 20) & 0x7ff) - 0x3ff; - if (j0 < 20) - { - if (j0 < 0) - /* The magnitude of the number is < 1 so the result is +-0. */ - INSERT_WORDS (x, sx, 0); - else - INSERT_WORDS (x, sx | (i0 & ~(0x000fffff >> j0)), 0); - } - else if (j0 > 51) - { - if (j0 == 0x400) - /* x is inf or NaN. */ - return x + x; - } - else - { - INSERT_WORDS (x, i0, i1 & ~(0xffffffffu >> (j0 - 20))); - } - - return x; -} -#ifndef __trunc -weak_alias (__trunc, trunc) -# ifdef NO_LONG_DOUBLE -strong_alias (__trunc, __truncl) -weak_alias (__trunc, truncl) -# endif -#endif |