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
|
/* operator<< -- mpf formatted output to an ostream.
Copyright 2001, 2002 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
The GNU MP 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 3 of the License, or (at your
option) any later version.
The GNU MP 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 MP Library. If not, see http://www.gnu.org/licenses/. */
#include <clocale>
#include <iostream>
#include <stdarg.h> /* for va_list and hence doprnt_funs_t */
#include <string.h>
#include "gmp.h"
#include "gmp-impl.h"
using namespace std;
/* The gmp_asprintf support routines never give an error, so
__gmp_doprnt_mpf shouldn't fail and it's return can just be checked with
an ASSERT. */
ostream&
operator<< (ostream &o, mpf_srcptr f)
{
struct doprnt_params_t param;
struct gmp_asprintf_t d;
char *result;
int ret;
__gmp_doprnt_params_from_ios (¶m, o);
#if HAVE_STD__LOCALE
char point[2];
point[0] = use_facet< numpunct<char> >(o.getloc()).decimal_point();
point[1] = '\0';
#else
const char *point = localeconv()->decimal_point;
#endif
GMP_ASPRINTF_T_INIT (d, &result);
ret = __gmp_doprnt_mpf (&__gmp_asprintf_funs_noformat, &d, ¶m, point, f);
ASSERT (ret != -1);
__gmp_asprintf_final (&d);
gmp_allocated_string t (result);
return o.write (t.str, t.len);
}
|
