65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
/* operator<< -- mpf formatted output to an ostream.
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Copyright 2001, 2002 Free Software Foundation, Inc.
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Copyright 2009 William Hart
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include <clocale>
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#include <iostream>
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#include <stdarg.h> /* for va_list and hence doprnt_funs_t */
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#include <string.h>
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#include "mpir.h"
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#include "gmp-impl.h"
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using namespace std;
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/* The gmp_asprintf support routines never give an error, so
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__gmp_doprnt_mpf shouldn't fail and it's return can just be checked with
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an ASSERT. */
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ostream&
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operator<< (ostream &o, mpf_srcptr f)
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{
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struct doprnt_params_t param;
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struct gmp_asprintf_t d;
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char *result;
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int ret;
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__gmp_doprnt_params_from_ios (¶m, o);
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#if HAVE_STD__LOCALE && !defined (__sun) && !(defined(__APPLE_CC__) && (__APPLE_CC__ > 1))
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char point[2];
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point[0] = use_facet< numpunct<char> >(o.getloc()).decimal_point();
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point[1] = '\0';
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#else
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const char *point = localeconv()->decimal_point;
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#endif
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GMP_ASPRINTF_T_INIT (d, &result);
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ret = __gmp_doprnt_mpf (&__gmp_asprintf_funs_noformat, &d, ¶m, point, f);
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ASSERT (ret != -1);
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__gmp_asprintf_final (&d);
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gmp_allocated_string t (result);
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return o.write (t.str, t.len);
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}
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