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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [libstdc++-v3/] [testsuite/] [22_locale/] [numpunct/] [members/] [char/] [cache_2.cc] - Rev 19
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// 2003-07-06 Benjamin Kosnik <bkoz@redhat.com> // Copyright (C) 2003 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 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. #include <locale> #include <sstream> #include <ostream> #include <testsuite_hooks.h> class numpunct_checked : public std::numpunct<char> { typedef std::numpunct<char> base; public: explicit numpunct_checked(std::size_t refs = 0): base(refs) { } string_type base_truename() const { return base::do_truename(); } protected: virtual string_type do_truename() const { return base::do_truename() + "st"; } }; // Changing caches deletes old cache, adds new one. void test01() { using namespace std; bool test __attribute__((unused)) = true; const string empty; const string basestr("true"); const string derivedstr("truest"); const locale loc(locale::classic(), new numpunct_checked); stringbuf sbuf; ostream os(&sbuf); os.setf(ios_base::boolalpha); // Pre-cache sanity check. const numpunct<char>& np = use_facet<numpunct<char> >(loc); VERIFY( np.truename() == derivedstr ); // Cache. os.imbue(loc); os << true; VERIFY( sbuf.str() == derivedstr ); // Re-cache. sbuf.str(empty); os.imbue(locale::classic()); os << true; VERIFY( sbuf.str() == basestr ); // Cache new locale again. sbuf.str(empty); os.imbue(loc); os << true; VERIFY( sbuf.str() == derivedstr ); // Post-cache sanity check, make sure that base class is still fine. VERIFY( np.truename() == derivedstr ); const numpunct_checked& npd = static_cast<const numpunct_checked&>(np); VERIFY( npd.base_truename() == basestr ); } int main() { test01(); return 0; }