#includeIn this example, we create an instance of the OptionsCont class with the command-line arguments passed to the program. We then use the getString() method to get the value of the "name" option, which is a string. If the "name" option is not specified, the "name" variable will be an empty string, so we print either "Hello, {name}!" or "Hello, world!" depending on whether a name was provided. The OptionsCont class is likely part of a package or library that provides command-line argument parsing functionality for C++ programs.#include int main(int argc, char** argv) { OptionsCont options(argc, argv); // Get the value of the --name option std::string name = options.getString("name"); if (!name.empty()) { std::cout << "Hello, " << name << "!" << std::endl; } else { std::cout << "Hello, world!" << std::endl; } return 0; }