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 either:
10 * the GNU Lesser General Public License as published by the Free
11 Software Foundation; either version 3 of the License, or (at your
12 option) any later version.
16 * the GNU General Public License as published by the Free Software
17 Foundation; either version 2 of the License, or (at your option) any
20 or both in parallel, as here.
22 The GNU MP Library is distributed in the hope that it will be useful, but
23 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
24 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
27 You should have received copies of the GNU General Public License and the
28 GNU Lesser General Public License along with the GNU MP Library. If not,
29 see https://www.gnu.org/licenses/. */
40 // For g++ libstdc++ parsing see num_get<chartype,initer>::_M_extract_int in
41 // include/bits/locale_facets.tcc.
44 __gmpz_operator_in_nowhite (istream &i, mpz_ptr z, char c)
48 bool ok = false, zero, showbase;
50 if (c == '-' || c == '+') // sign
52 if (c == '-') // mpz_set_str doesn't accept '+'
57 base = __gmp_istream_set_base(i, c, zero, showbase); // select the base
58 __gmp_istream_set_digits(s, i, c, ok, base); // read the number
60 if (i.good()) // last character read was non-numeric
62 else if (i.eof() && (ok || zero)) // stopped just before eof
66 ASSERT_NOCARRY (mpz_set_str (z, s.c_str(), base)); // extract the number
70 i.setstate(ios::failbit); // read failed