osdoprnti.cc
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上传日期:2022-08-06
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文件大小:2k
- /* __gmp_doprnt_integer_ios -- integer formatted output to an ostream.
- THE FUNCTIONS IN THIS FILE ARE FOR INTERNAL USE ONLY. THEY'RE ALMOST
- CERTAIN TO BE SUBJECT TO INCOMPATIBLE CHANGES OR DISAPPEAR COMPLETELY IN
- FUTURE GNU MP RELEASES.
- Copyright 2001 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 <iostream>
- #include <cstdarg> /* for va_list and hence doprnt_funs_t */
- #include <cstring> /* for strlen */
- #include "gmp.h"
- #include "gmp-impl.h"
- using namespace std;
- /* The gmp_asprintf support routines never give an error, so
- __gmp_doprnt_integer shouldn't fail and it's return can just be checked
- with an ASSERT. */
- ostream&
- __gmp_doprnt_integer_ostream (ostream &o, struct doprnt_params_t *p,
- char *s)
- {
- struct gmp_asprintf_t d;
- char *result;
- int ret;
- /* don't show leading zeros the way printf does */
- p->prec = -1;
- GMP_ASPRINTF_T_INIT (d, &result);
- ret = __gmp_doprnt_integer (&__gmp_asprintf_funs_noformat, &d, p, s);
- ASSERT (ret != -1);
- __gmp_asprintf_final (&d);
- (*__gmp_free_func) (s, strlen(s)+1);
- gmp_allocated_string t (result);
- return o.write (t.str, t.len);
- }