URL
https://opencores.org/ocsvn/openrisc/openrisc/trunk
Subversion Repositories openrisc
[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc3/] [libstdc++-v3/] [testsuite/] [23_containers/] [vector/] [cons/] [clear_allocator.cc] - Rev 516
Compare with Previous | Blame | View Log
// Copyright (C) 2004, 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/>. #include <vector> #include <ext/new_allocator.h> using namespace std; using __gnu_cxx::new_allocator; template<typename T> class clear_alloc : public new_allocator<T> { public: template <typename T1> struct rebind { typedef clear_alloc<T1> other; }; virtual void clear() throw() { } clear_alloc() throw() { } clear_alloc(clear_alloc const&) throw() : new_allocator<T>() { } template<typename T1> clear_alloc(clear_alloc<T1> const&) throw() { } virtual ~clear_alloc() throw() { this->clear(); } T* allocate(typename new_allocator<T>::size_type n, const void *hint = 0) { this->clear(); return new_allocator<T>::allocate(n, hint); } void deallocate(T *ptr, typename new_allocator<T>::size_type n) { this->clear(); new_allocator<T>::deallocate(ptr, n); } }; template<typename Container> void Check_Container() { Container* pic = new Container; int x = 230; while (x--) { pic->push_back(x); } pic->get_allocator(); // The following has led to infinite recursions or cores. pic->clear(); delete pic; } int main() { Check_Container<std::vector<int, clear_alloc<int> > >(); return 0; }