1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
/* Round argument to nearest integral value according to current rounding
direction.
Copyright (C) 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
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. */
#define __LIBC_M81_MATH_INLINES
#include <math.h>
#include "math_private.h"
long long int
__llrint (long double x)
{
int32_t se, sx;
u_int32_t h, l;
long long int result;
x = __m81_u(__rintl) (x);
/* We could use __fixxfdi from libgcc, but here we can take advantage of
the known floating point format. */
GET_LDOUBLE_WORDS (se, h, l, x);
sx = se & (1 << 15);
se = (se ^ sx) - 0x3fff;
if (se < 64)
{
if (se > 31)
result = (((long long int) (h >> (63 - se)) << 32)
| (l >> (63 - se)) | (h << (se - 31)));
else
result = h >> (31 - se);
if (sx)
result = -result;
}
else
/* Too large. The number is either +-inf or NaN or it is too
large to be effected by rounding. The standard leaves it
undefined what to return when the number is too large to fit in
a `long long int'. */
result = -1LL;
return result;
}
weak_alias (__llrint, llrint)
|
