1 /* Round argument to nearest integral value according to current rounding
3 Copyright (C) 1997, 2006 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
5 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public
18 License along with the GNU C Library; if not, write to the Free
19 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
24 #include "math_private.h"
26 static const float two23[2] =
28 8.3886080000e+06, /* 0x4B000000 */
29 -8.3886080000e+06, /* 0xCB000000 */
43 GET_FLOAT_WORD (i0, x);
46 j0 = ((i0 >> 23) & 0xff) - 0x7f;
50 if (j0 < (int32_t) (sizeof (long long int) * 8) - 1)
53 result = (long long int) i0 << (j0 - 23);
58 GET_FLOAT_WORD (i0, t);
59 j0 = ((i0 >> 23) & 0xff) - 0x7f;
63 result = (j0 < 0 ? 0 : i0 >> (23 - j0));
68 /* The number is too large. It is left implementation defined
70 return (long long int) x;
73 return sx ? -result : result;
76 weak_alias (__llrintf, llrintf)