1 /* __gmpz_operator_in_nowhite -- C++-style input of mpz_t, no whitespace skip.
3 Copyright 2001, 2003 Free Software Foundation, Inc.
5 This file is part of the GNU MP Library.
7 The GNU MP Library is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or (at your
10 option) any later version.
12 The GNU MP Library is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
15 License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
29 // For g++ libstdc++ parsing see num_get<chartype,initer>::_M_extract_int in
30 // include/bits/locale_facets.tcc.
33 __gmpz_operator_in_nowhite (istream &i, mpz_ptr z, char c)
37 bool ok = false, zero, showbase;
39 if (c == '-' || c == '+') // sign
41 if (c == '-') // mpz_set_str doesn't accept '+'
46 base = __gmp_istream_set_base(i, c, zero, showbase); // select the base
47 __gmp_istream_set_digits(s, i, c, ok, base); // read the number
49 if (i.good()) // last character read was non-numeric
51 else if (i.eof() && (ok || zero)) // stopped just before eof
55 ASSERT_NOCARRY (mpz_set_str (z, s.c_str(), base)); // extract the number
59 i.setstate(ios::failbit); // read failed