serializing vector

[thetetrismaster@…]

In <boost/serialization/vector.hpp> when dispatching to the default load method and detail::is_default_constructible<U> fails, should the vector be cleared if it is not empty? line 98 reserves capacity for the vector and line 102 pushes new elements into the vector. so if the vector is loaded multiple times its size will grow. if you try to load a vector starting with a vector that is not empty, the vector size will grow.

should you do the following check:

if(!t.empty()) t.clear(); t.reserve(count);

[thetetrismaster@…]

also, in my particular context, detail::is_default_constructible<MyClass> is failing when it should not be since MyClass is indeed default constructible. I checked:

std::is_default_constructible<std::vector<MyClass>>::value == true

but

boost::serialization::detail::is_default_constructible<std::vector<MyClass>>::value == false

I also believe that the BOOST_NO_CXX11_HDR_TYPE_TRAITS flag is not being set properly.

[Robert Ramey]

The code cited is from version 1.58.

Currently we are in version 1.59 and the code has changed in order not to use is_default_constructble.

so this report is not applicable.