Boost 1.65.1 序列化到 vector 失败并显示 'Assertion initialized_ failed'

Question

我有以下将 int 序列化为 std:vector 的测试用例。

它因以下断言而崩溃：

serialization_test: /usr/include/boost/iostreams/detail/optional.hpp:55: T& boost::iostreams::detail::optional<T>::operator*() [with T = boost::iostreams::detail::concept_adapter<boost::iostreams::back_insert_device<std::vector<char> > >]: Assertion `initialized_' failed.

有什么想法吗？我认为这应该可行...

BOOST_AUTO_TEST_CASE(serialize_base_test)
{
    int t = 42;
    std::vector<char> buffer;

    iostreams::back_insert_device<std::vector<char>> sink{buffer};
    iostreams::stream<iostreams::back_insert_device<std::vector<char>>> os;
    os.open(sink);
    archive::binary_oarchive oa(os);

    oa << t;
    os.flush();
    os.close();

}

编辑：我简化了测试用例。

Answer 1

好的，我明白了。 binary_oarchive 在其析构函数中做了一些事情，要求流仍然打开。以下作品：

BOOST_AUTO_TEST_CASE(serialize_base_test)
{
    int t = 42;
    std::vector<char> buffer;

    iostreams::back_insert_device<std::vector<char>> sink{buffer};
    iostreams::stream<iostreams::back_insert_device<std::vector<char>>> os;
    os.open(sink);
    {
        archive::binary_oarchive oa(os);
        oa << t; 
    }

}

Answer 2

应在关闭流之前调用存档的析构函数，因为它会将任何已更改的流方面恢复到打开存档之前的状态。

Boost 1.65.1 序列化到 vector 失败并显示 'Assertion initialized_ failed'

Boost 1.65.1 serialization to vector fails with 'Assertion initialized_ failed'

c++

serialization

boost

boost-serialization