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Diffstat (limited to 'gcc-4.8/libstdc++-v3/testsuite/23_containers/vector/capacity/2.cc')
-rw-r--r-- | gcc-4.8/libstdc++-v3/testsuite/23_containers/vector/capacity/2.cc | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/gcc-4.8/libstdc++-v3/testsuite/23_containers/vector/capacity/2.cc b/gcc-4.8/libstdc++-v3/testsuite/23_containers/vector/capacity/2.cc new file mode 100644 index 000000000..d9b216285 --- /dev/null +++ b/gcc-4.8/libstdc++-v3/testsuite/23_containers/vector/capacity/2.cc @@ -0,0 +1,102 @@ +// 1999-05-07 +// bkoz + +// Copyright (C) 1999-2013 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/>. + +// 23.2.4.2 vector capacity + +#include <vector> +#include <stdexcept> +#include <testsuite_allocator.h> +#include <testsuite_hooks.h> + +using __gnu_test::copy_tracker; +using __gnu_test::tracker_allocator_counter; +using __gnu_test::tracker_allocator; +using __gnu_test::copy_constructor; +using __gnu_test::assignment_operator; +using __gnu_test::destructor; + +// Verifies basic functionality of reserve() with forced reallocation. +void +test_reserve() +{ + bool test __attribute__((unused)) = true; + typedef copy_tracker T; + typedef std::vector<T, tracker_allocator<T> > X; + + tracker_allocator_counter::reset(); + { + X a(3); + const X::size_type old_size = a.size(); + const X::size_type old_capacity = a.capacity(); + const X::size_type new_capacity = old_capacity + 10; + T::reset(); + + a.reserve(new_capacity); + + // [23.2.4.1 (2)] + VERIFY(new_capacity <= a.capacity()); + // [23.2.4.1 (3)] + VERIFY(old_size == a.size()); + VERIFY(copy_constructor::count() <= old_size); + VERIFY(destructor::count() <= old_size); + } + // check for memory leaks + VERIFY(tracker_allocator_counter::get_allocation_count() == tracker_allocator_counter::get_deallocation_count()); +} + +// Verifies that reserve() with reallocation offers the strong +// exception guarantee. +void +test_reserve_exception_guarantee() +{ + bool test __attribute__((unused)) = true; + typedef copy_tracker T; + typedef std::vector<T, tracker_allocator<T> > X; + + tracker_allocator_counter::reset(); + { + X a(7); + const X::size_type old_size __attribute__((unused)) = a.size(); + const X::size_type old_capacity = a.capacity(); + const X::size_type new_capacity = old_capacity + 10; + T::reset(); + copy_constructor::throw_on(3); + + try + { + a.reserve(new_capacity); + VERIFY(false); + } + catch (...) + { + } + + VERIFY(old_capacity == a.capacity()); + VERIFY(copy_constructor::count() == destructor::count()+1); + } + VERIFY(tracker_allocator_counter::get_allocation_count() == tracker_allocator_counter::get_deallocation_count()); +} + +int main() +{ + test_reserve(); + test_reserve_exception_guarantee(); + return 0; +} |