Nevin questions

Nevin answers

• returning a string from a function
• Is there a better way in C++11 to construct classes on the stack
• Moving a shared_ptr<StructA> into a shared_ptr<variant<StructA, StructB>>
• Private constructor inhibits use of emplace[_back]() to avoid a move
• How do you determine the size of the nodes created by a 'std::map' for use with 'boost::pool_allocator' (in a cross-platform way)?
• If I need polymorphism should I use raw pointers instead of unique_ptr?
• Range-based for and other increments
• Why didn't C++11 incorporate all of Boost's type traits?
• Does it make sense to provide only const iterators for a container?
• Migrating code from C++03 to C++11: should I be cautious about the implicit default move constructor?