| // Copyright (C) 2004 Free Software Foundation |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 2, or (at your option) |
| // any later version. |
| |
| // This 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 General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING. If not, write to the Free |
| // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
| // USA. |
| |
| // 27.6.1.3 unformatted input functions |
| |
| #include <istream> |
| #include <string> |
| #include <fstream> |
| #include <limits> |
| #include <testsuite_hooks.h> |
| |
| using namespace std; |
| |
| wstring |
| prepare(wstring::size_type len, unsigned nchunks, wchar_t delim) |
| { |
| wstring ret; |
| for (unsigned i = 0; i < nchunks; ++i) |
| { |
| for (wstring::size_type j = 0; j < len; ++j) |
| ret.push_back(L'a' + rand() % 26); |
| len *= 2; |
| ret.push_back(delim); |
| } |
| return ret; |
| } |
| |
| void |
| check(wistream& stream, const wstring& str, unsigned nchunks, wchar_t delim) |
| { |
| bool test __attribute__((unused)) = true; |
| |
| wstring::size_type index = 0, index_new = 0; |
| unsigned n = 0; |
| |
| while (stream.ignore(numeric_limits<streamsize>::max(), delim).good()) |
| { |
| index_new = str.find(delim, index); |
| VERIFY( static_cast<string::size_type>(stream.gcount()) == |
| index_new - index + 1 ); |
| index = index_new + 1; |
| ++n; |
| } |
| VERIFY( stream.gcount() == 0 ); |
| VERIFY( !stream.fail() ); |
| VERIFY( n == nchunks ); |
| } |
| |
| void test01() |
| { |
| const char filename[] = "wistream_ignore.txt"; |
| |
| const wchar_t delim = L'|'; |
| const unsigned nchunks = 10; |
| const wstring data = prepare(555, nchunks, delim); |
| |
| wofstream ofstrm; |
| ofstrm.open(filename); |
| ofstrm.write(data.data(), data.size()); |
| ofstrm.close(); |
| |
| wifstream ifstrm; |
| ifstrm.open(filename); |
| check(ifstrm, data, nchunks, delim); |
| ifstrm.close(); |
| } |
| |
| int main() |
| { |
| test01(); |
| return 0; |
| } |