C++ equivalent of StringBuffer/StringBuilder?

Question

Is there a C++ Standard Template Library class that provides efficient string concatenation functionality, similar to C#\'s StringBuilder or Java\'s StringBuffer?

Answer 1

The std::string.append function isn't a good option because it doesn't accept many forms of data. A more useful alternative is to use std::stringstream; like so:

#include 
// ...

std::stringstream ss;

//put arbitrary formatted data into the stream
ss << 4.5 << ", " << 4 << " whatever";

//convert the stream buffer into a string
std::string str = ss.str();