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https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [libstdc++-v3/] [testsuite/] [27_io/] [basic_filebuf/] [seekoff/] [wchar_t/] [12790-1.cc] - Rev 424
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// Copyright (C) 2003, 2009 Free Software Foundation, Inc. // // 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 3, 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 COPYING3. If not see // <http://www.gnu.org/licenses/>. // 27.8.1.4 Overridden virtual functions #include <locale> #include <fstream> #include <testsuite_hooks.h> class Cvt : public std::codecvt<wchar_t, char, std::mbstate_t> { public: mutable bool unshift_called; Cvt() : unshift_called(false) { } protected: bool do_always_noconv() const throw() { return false; } int do_encoding() const throw() { return -1; } std::codecvt_base::result do_unshift(std::mbstate_t&, char* to, char*, char*& to_next) const { unshift_called = true; to_next = to; return std::codecvt_base::ok; } }; // libstdc++/12790 // basic_filebuf::seekoff() should call codecvt::unshift() void test01() { using namespace std; bool test __attribute__((unused)) = true; const char* name = "tmp_seekoff_12790"; Cvt* cvt = new Cvt; locale loc(locale::classic(), cvt); wfilebuf fb; fb.pubimbue(loc); fb.open(name, ios_base::out); fb.sputc(L'a'); VERIFY( !cvt->unshift_called ); fb.pubseekoff(0, ios_base::cur); VERIFY( cvt->unshift_called ); } int main() { test01(); return 0; }
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