I'd like to see more support functions in C++, like:
* XML support
* Objectify all similar functions like string to number and number to string(formatted also). Would like to find like function all in one place. Like a class with static members instead of spread around different function names.
* More string functions, like StringBetweenStrings etc.
Is there anything new coming in support functions?
Someone would have to propose an XML library, likely first to boost, and if it succeeds there, to C++. There aren't any XML library proposals for C++ in flight. There is a library in boost that can read/write most XML (boost.propertytree), but it's only incidental to its purpose. Of non-standard opensource XML libraries, I read good things about http://pugixml.org/
Making string operations static members of some class doesn't make sense in C++. We are getting some new string types (string views) and functions (from_chars/to_chars) in C++17, but not the way you're thinking.
In this three-part series, I will explore, and debunk, five popular myths about C++:
“To understand C++, you must first learn C”
“C++ is an Object-Oriented Language”
The "loose functions" are not C style: they are overloaded, grouped in namespaces, and tied to the classes they represent by argument-dependent lookup. Look at swap for example: http://en.cppreference.com/w/cpp/algorithm/swap#Specializations -- besides the two main overloads, there is one for every non-trivial library class. You don't make something a class member in C++ unless there is no other way.
I'll start with the punchline: If you're writing a function that can be implemented as either a member or as a non-friend non-member, you should prefer to implement it as a non-member function. That decision increases class encapsulation. When you think encapsulation, you should think non-member functions.