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ismpz.cc
Package: gmp-5.0.1.tar.gz [view]
Upload User: qaz666999
Upload Date: 2022-08-06
Package Size: 2570k
Code Size: 1k
Category:
Algorithm
Development Platform:
Unix_Linux
- /* operator>> -- C++-style input of mpz_t.
- Copyright 2001, 2003 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 <cctype>
- #include <iostream>
- #include <string>
- #include "gmp.h"
- #include "gmp-impl.h"
- using namespace std;
- // For g++ libstdc++ parsing see num_get<chartype,initer>::_M_extract_int in
- // include/bits/locale_facets.tcc.
- istream &
- operator>> (istream &i, mpz_ptr z)
- {
- char c = 0;
- i.get(c); // start reading
- if (i.flags() & ios::skipws) // skip initial whitespace
- {
- #if HAVE_STD__LOCALE
- const ctype<char>& ct = use_facet< ctype<char> >(i.getloc());
- #define cxx_isspace(c) (ct.is(ctype_base::space,(c)))
- #else
- #define cxx_isspace(c) isspace(c)
- #endif
- while (cxx_isspace(c) && i.get(c))
- ;
- }
- return __gmpz_operator_in_nowhite (i, z, c);
- }