smart_ptr/test/make_unique_array_noinit_test.cpp

/*
Copyright 2014 Glen Joseph Fernandes
(glenjofe@gmail.com)

Distributed under the Boost Software License, Version 1.0.
(http://www.boost.org/LICENSE_1_0.txt)
*/
#include <boost/smart_ptr/make_unique.hpp>
#include <boost/core/lightweight_test.hpp>
#include <boost/config.hpp>

class type {
public:
    static unsigned instances;

    type() {
        ++instances;
    }

    ~type() {
        --instances;
    }

private:
    type(const type&);
    type& operator=(const type&);
};

unsigned type::instances = 0;

int main()
{
    {
        std::unique_ptr<int[]> result =
            boost::make_unique_noinit<int[]>(3);
        BOOST_TEST(result.get() != 0);
    }
    {
        std::unique_ptr<int[][2]> result =
            boost::make_unique_noinit<int[][2]>(2);
        BOOST_TEST(result.get() != 0);
    }
    BOOST_TEST(type::instances == 0);
    {
        std::unique_ptr<type[]> result =
            boost::make_unique_noinit<type[]>(3);
        BOOST_TEST(result.get() != 0);
        BOOST_TEST(type::instances == 3);
        result.reset();
        BOOST_TEST(type::instances == 0);
    }
    BOOST_TEST(type::instances == 0);
    {
        std::unique_ptr<type[][2]> result =
            boost::make_unique_noinit<type[][2]>(2);
        BOOST_TEST(result.get() != 0);
        BOOST_TEST(type::instances == 4);
        result.reset();
        BOOST_TEST(type::instances == 0);
    }
    BOOST_TEST(type::instances == 0);
    {
        std::unique_ptr<const type[]> result =
            boost::make_unique_noinit<const type[]>(3);
        BOOST_TEST(result.get() != 0);
        BOOST_TEST(type::instances == 3);
        result.reset();
        BOOST_TEST(type::instances == 0);
    }
    BOOST_TEST(type::instances == 0);
    {
        std::unique_ptr<const type[][2]> result =
            boost::make_unique_noinit<const type[][2]>(2);
        BOOST_TEST(result.get() != 0);
        BOOST_TEST(type::instances == 4);
        result.reset();
        BOOST_TEST(type::instances == 0);
    }
    return boost::report_errors();
}