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//////////////////////////////////////////////////////////////////////////////
//
// (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/container/allocator.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_CONTAINER_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);
}
template<class Unsigned, class VectorType>
void test_stored_size_type_impl()
{
#ifndef BOOST_NO_EXCEPTIONS
VectorType v;
typedef typename VectorType::size_type size_type;
typedef typename VectorType::value_type value_type;
size_type const max = Unsigned(-1);
v.resize(5);
v.resize(max);
BOOST_TEST_THROWS(v.resize(max+1), std::exception);
BOOST_TEST_THROWS(v.push_back(value_type(1)), std::exception);
BOOST_TEST_THROWS(v.insert(v.begin(), value_type(1)), std::exception);
BOOST_TEST_THROWS(v.emplace(v.begin(), value_type(1)),std::exception);
BOOST_TEST_THROWS(v.reserve(max+1), std::exception);
BOOST_TEST_THROWS(VectorType v2(max+1), std::exception);
#endif
}
template<class Unsigned>
void test_stored_size_type()
{
#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
using options_t = small_vector_options_t< stored_size<Unsigned> >;
#else
typedef typename small_vector_options
< stored_size<Unsigned> >::type options_t;
#endif
typedef small_vector<unsigned char, Unsigned(-1)> normal_small_vector_t;
//Test first with a typical allocator
{
typedef small_vector<unsigned char, Unsigned(-1), new_allocator<unsigned char>, options_t> small_vector_t;
test_stored_size_type_impl<Unsigned, small_vector_t>();
BOOST_CONTAINER_STATIC_ASSERT(sizeof(normal_small_vector_t) > sizeof(small_vector_t));
}
//Test with a V2 allocator
{
typedef small_vector<unsigned char, Unsigned(-1), allocator<unsigned char>, options_t> small_vector_t;
test_stored_size_type_impl<Unsigned, small_vector_t>();
BOOST_CONTAINER_STATIC_ASSERT(sizeof(normal_small_vector_t) > sizeof(small_vector_t));
}
}
int main()
{
test_alignment();
test_growth_factor_50();
test_growth_factor_60();
test_growth_factor_100();
test_stored_size_type<unsigned char>();
test_stored_size_type<unsigned short>();
return ::boost::report_errors();
}
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