// 2000-09-13 Benjamin Kosnik // Copyright (C) 2000, 2002, 2003, 2009 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 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 // . // 22.1.1.5 locale static members [lib.locale.statics] #include // for mbstate_t #include #include // Static counter for use in checking ctors/dtors. static std::size_t counter; class surf : public std::locale::facet { public: static std::locale::id id; surf(size_t refs = 0): std::locale::facet(refs) { ++counter; } ~surf() { --counter; } }; std::locale::id surf::id; typedef surf facet_type; // Verify lifetimes of global objects. void test03() { using namespace std; bool test __attribute__((unused)) = true; string name; locale global_orig; // 1: Destroyed when out of scope. { { { VERIFY( counter == 0 ); { locale loc01(locale::classic(), new facet_type); VERIFY( counter == 1 ); global_orig = locale::global(loc01); name = loc01.name(); } VERIFY( counter == 1 ); locale loc02 = locale(); // Weak, but it's something... VERIFY( loc02.name() == name ); } VERIFY( counter == 1 ); // NB: loc03 should be a copy of the previous global locale. locale loc03 = locale::global(global_orig); VERIFY( counter == 1 ); VERIFY( loc03.name() == name ); } VERIFY( counter == 0 ); locale loc04 = locale(); VERIFY( loc04 == global_orig ); } // 2: Not destroyed when out of scope, deliberately leaked. { { { VERIFY( counter == 0 ); { locale loc01(locale::classic(), new facet_type(1)); VERIFY( counter == 1 ); global_orig = locale::global(loc01); name = loc01.name(); } VERIFY( counter == 1 ); locale loc02 = locale(); // Weak, but it's something... VERIFY( loc02.name() == name ); } VERIFY( counter == 1 ); // NB: loc03 should be a copy of the previous global locale. locale loc03 = locale::global(global_orig); VERIFY( counter == 1 ); VERIFY( loc03.name() == name ); } VERIFY( counter == 1 ); locale loc04 = locale(); VERIFY( loc04 == global_orig ); } VERIFY( counter == 1 ); // Restore global settings. locale::global(global_orig); } int main () { test03(); return 0; }