C++ instantiating std::vector<std::string> with fixed number of empty strings

Question

I'm developing a class for building records (with a fixed number of fields). My public methods allow the user to insert individual values by index. There's no requirement that the user fill in all fields -- so I'd like to preallocate the vector that represents the record to the exact size, with every field initialized to the empty string.

Is there a way to do this more easily than with a push-back loop?

Answer 1

Something like this:

std::vector<std::string> v(N);

where N is the number of strings. This creates a vector with N empty strings.