The following type

CS_VALUE_TYPE class DLL_API ValueType {
public:
    const char* char_ptr_member;
};

results in a memory leak when the following code is executed:

while (true) {
    var test = new ValueType();
    test.CharPtrMember = "Looooooooooooong string";
}

The set accessor allocates memory which is never freed outside of the set accessor.

At this time I see three options to solve this, listed in presumed increasing level of complexity:

1. Disabling char* to string marshalling for value type members
2. Using IDisposable
3. Wrapping the unmanaged memory in a managed class that cleans up the memory when it gets finalized and having that class be an additional member of the value type.