63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
/* 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 2.1 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; see the file COPYING.LIB. If not, write to
|
|
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
MA 02110-1301, USA. */
|
|
|
|
#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);
|
|
}
|