| ////////////////////////////////////////////////////////////////////////////// |
| // |
| // (C) Copyright Ion Gaztanaga 2004-2013. Distributed under the Boost |
| // Software License, Version 1.0. (See accompanying file |
| // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| // |
| // See http://www.boost.org/libs/container for documentation. |
| // |
| ////////////////////////////////////////////////////////////////////////////// |
| #include <boost/container/small_vector.hpp> |
| #include <boost/core/lightweight_test.hpp> |
| #include <boost/assert.hpp> |
| using namespace boost::container; |
| |
| const std::size_t Capacity = 10u; |
| |
| void test_alignment() |
| { |
| { //extended alignment |
| const std::size_t extended_alignment = sizeof(int)*4u; |
| BOOST_STATIC_ASSERT(extended_alignment > dtl::alignment_of<int>::value); |
| #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES) |
| using options_t = small_vector_options_t< inplace_alignment<extended_alignment> >; |
| #else |
| typedef small_vector_options |
| < inplace_alignment<extended_alignment> >::type options_t; |
| #endif |
| |
| small_vector<int, Capacity, void, options_t> v; |
| v.resize(v.capacity()); |
| BOOST_ASSERT((reinterpret_cast<std::size_t>(&v[0]) % extended_alignment) == 0); |
| } |
| { //default alignment |
| #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES) |
| using options_t = small_vector_options_t< inplace_alignment<0> >; |
| #else |
| typedef small_vector_options< inplace_alignment<0> >::type options_t; |
| #endif |
| |
| small_vector<int, Capacity, void, options_t> v; |
| v.resize(v.capacity()); |
| BOOST_ASSERT((reinterpret_cast<std::size_t>(&v[0]) % dtl::alignment_of<int>::value) == 0); |
| } |
| } |
| |
| void test_growth_factor_50() |
| { |
| #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES) |
| using options_t = small_vector_options_t< growth_factor<growth_factor_50> >; |
| #else |
| typedef small_vector_options |
| < growth_factor<growth_factor_50> >::type options_t; |
| #endif |
| |
| small_vector<int, Capacity, new_allocator<int>, options_t> v; |
| |
| v.resize(5); |
| v.resize(v.capacity()); |
| std::size_t old_capacity = v.capacity(); |
| v.push_back(0); |
| std::size_t new_capacity = v.capacity(); |
| BOOST_TEST(new_capacity == old_capacity + old_capacity/2); |
| } |
| |
| void test_growth_factor_60() |
| { |
| #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES) |
| using options_t = small_vector_options_t< growth_factor<growth_factor_60> >; |
| #else |
| typedef small_vector_options |
| < growth_factor<growth_factor_60> >::type options_t; |
| #endif |
| |
| small_vector<int, Capacity, new_allocator<int>, options_t> v; |
| |
| v.resize(5); |
| v.resize(v.capacity()); |
| std::size_t old_capacity = v.capacity(); |
| v.push_back(0); |
| std::size_t new_capacity = v.capacity(); |
| BOOST_TEST(new_capacity == old_capacity + 3*old_capacity/5); |
| } |
| |
| void test_growth_factor_100() |
| { |
| #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES) |
| using options_t = small_vector_options_t< growth_factor<growth_factor_100> >; |
| #else |
| typedef small_vector_options |
| < growth_factor<growth_factor_100> >::type options_t; |
| #endif |
| |
| small_vector<int, Capacity, new_allocator<int>, options_t> v; |
| |
| v.resize(5); |
| v.resize(v.capacity()); |
| std::size_t old_capacity = v.capacity(); |
| v.push_back(0); |
| std::size_t new_capacity = v.capacity(); |
| BOOST_TEST(new_capacity == 2*old_capacity); |
| } |
| |
| int main() |
| { |
| test_alignment(); |
| test_growth_factor_50(); |
| test_growth_factor_60(); |
| test_growth_factor_100(); |
| return ::boost::report_errors(); |
| } |