The document provides code and examples for reversing a string using an iterative method in C++. It explains taking in a string as input, declaring output and input strings of the same length, and swapping the first and last characters, second and second to last, and so on through multiple iterations until the string is reversed. Examples show reversing the strings "Extreme" to "emertxE" and "hello world" to "dlrow olleh" through this iterative swap process. Pre-requisites of strings and loops are noted, with the objective stated as understanding string reversal using an iterative approach.