1 /* Round argument to nearest integral value according to current rounding
3 Copyright (C) 1997-2024 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library. If not, see
18 <https://www.gnu.org/licenses/>. */
21 #include <math_private.h>
22 #include <libm-alias-double.h>
32 x
= __m81_u(__rint
) (x
);
34 /* We could use __fixxfdi from libgcc, but here we can take advantage of
35 the known floating point format. */
36 EXTRACT_WORDS (h
, l
, x
);
38 e
= ((h
>> 20) & 0x7ff) - 0x3ff;
52 result
= ((long long int) h
<< 32) | l
;
59 result
= ((long long int) h
<< 32) | l
;
62 result
= h
>> (20 - e
);
67 /* The number is too large or not finite. The standard leaves it
68 undefined what to return when the number is too large to fit in a
75 libm_alias_double (__llrint
, llrint
)