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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libstdc++-v3/] [testsuite/] [23_containers/] [vector/] [capacity/] [2.cc] - Blame information for rev 742

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1 742 jeremybenn
// 1999-05-07
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// bkoz 
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// Copyright (C) 1999, 2002, 2003, 2009 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library.  This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3.  If not see
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// <http://www.gnu.org/licenses/>.
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// 23.2.4.2 vector capacity
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#include <vector>
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#include <stdexcept>
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#include <testsuite_allocator.h>
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#include <testsuite_hooks.h>
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using __gnu_test::copy_tracker;
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using __gnu_test::tracker_allocator_counter;
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using __gnu_test::tracker_allocator;
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using __gnu_test::copy_constructor;
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using __gnu_test::assignment_operator;
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using __gnu_test::destructor;
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// Verifies basic functionality of reserve() with forced reallocation.
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void
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test_reserve()
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{
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  bool test __attribute__((unused)) = true;
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  typedef copy_tracker T;
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  typedef std::vector<T, tracker_allocator<T> > X;
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  tracker_allocator_counter::reset();
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  {
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    X a(3);
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    const X::size_type old_size     = a.size();
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    const X::size_type old_capacity = a.capacity();
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    const X::size_type new_capacity = old_capacity + 10;
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    T::reset();
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    a.reserve(new_capacity);
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    // [23.2.4.1 (2)]
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    VERIFY(new_capacity <= a.capacity());
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    // [23.2.4.1 (3)]
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    VERIFY(old_size == a.size());
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    VERIFY(copy_constructor::count() <= old_size);
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    VERIFY(destructor::count() <= old_size);
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  }
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  // check for memory leaks
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  VERIFY(tracker_allocator_counter::get_allocation_count() == tracker_allocator_counter::get_deallocation_count());
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}
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// Verifies that reserve() with reallocation offers the strong
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// exception guarantee.
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void
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test_reserve_exception_guarantee()
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{
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  bool test __attribute__((unused)) = true;
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  typedef copy_tracker T;
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  typedef std::vector<T, tracker_allocator<T> > X;
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  tracker_allocator_counter::reset();
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  {
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    X a(7);
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    const X::size_type old_size __attribute__((unused)) = a.size();
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    const X::size_type old_capacity = a.capacity();
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    const X::size_type new_capacity = old_capacity + 10;
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    T::reset();
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    copy_constructor::throw_on(3);
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    try
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    {
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      a.reserve(new_capacity);
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      VERIFY(false);
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    }
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    catch (...)
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    {
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    }
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    VERIFY(old_capacity == a.capacity());
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    VERIFY(copy_constructor::count() == destructor::count()+1);
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  }
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  VERIFY(tracker_allocator_counter::get_allocation_count() == tracker_allocator_counter::get_deallocation_count());
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}
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int main()
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{
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  test_reserve();
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  test_reserve_exception_guarantee();
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  return 0;
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}

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