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
63
64
65
|
/* Round argument to nearest integral value according to current rounding
direction.
Copyright (C) 1997, 1999 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 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <math.h>
#include "math_private.h"
#include "mathimpl.h"
long long int
__llrintl (long double x)
{
int32_t e, s;
u_int32_t h, l;
long long int result;
x = __m81_u(__rintl) (x);
GET_LDOUBLE_WORDS (e, h, l, x);
s = e;
e = (e & 0x7fff) - 0x3fff;
if (e < 0)
return 0;
if (e < 63)
{
if (e > 31)
{
l >>= 63 - e;
l |= h << (e - 31);
h >>= 63 - e;
result = ((long long int) h << 32) | l;
}
else
result = h >> (31 - e);
if (s & 0x8000)
result = -result;
}
else
/* The number is too large or not finite. 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 (__llrintl, llrintl)
|
