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
|
/* Software floating-point emulation.
Return (long double)(a)
Copyright (C) 1997,1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson (rth@cygnus.com) and
Jakub Jelinek (jj@ultra.linux.cz).
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. */
#include "soft-fp.h"
#include "double.h"
#include "quad.h"
long double _Q_dtoq(const double a)
{
FP_DECL_EX;
FP_DECL_D(A);
FP_DECL_Q(C);
long double c;
FP_INIT_ROUNDMODE;
FP_UNPACK_D(A, a);
#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q
FP_CONV(Q,D,4,2,C,A);
#else
FP_CONV(Q,D,2,1,C,A);
#endif
FP_PACK_Q(c, C);
FP_HANDLE_EXCEPTIONS;
return c;
}
|
GitWeb
