Prepend std::string

Question

What is the most efficient way to prepend std::string? Is it worth writing out an entire function to do so, or would it take only 1 - 2 lines? I\'m not seeing anyth

Answer 1

There is an overloaded string operator+ (char lhs, const string& rhs);, so you can just do your_string 'a' + your_string to mimic push_front.

This is not in-place but creates a new string, so don't expect it to be efficient, though. For a (probably) more efficient solution, use resize to gather space, std::copy_backward to shift the entire string back by one and insert the new character at the beginning.