#include #include #include #include "tclap/CmdLine.h" using namespace TCLAP; using namespace std; int main(int argc, char** argv) { // Wrap everything in a try block. Do this every time, // because exceptions will be thrown for problems. try { // Define the command line object. CmdLine cmd("Command description message", ' ', "0.9"); // Define a value argument and add it to the command line. ValueArg nameArg("n","name","Name to print",true,"homer","string"); cmd.add( nameArg ); // Define a switch and add it to the command line. SwitchArg reverseSwitch("r","reverse","Print name backwards", false); cmd.add( reverseSwitch ); // Parse the args. cmd.parse( argc, argv ); // Get the value parsed by each arg. string name = nameArg.getValue(); bool reverseName = reverseSwitch.getValue(); // Do what you intend too... if ( reverseName ) { reverse(name.begin(),name.end()); cout << "My name (spelled backwards) is: " << name << endl; } else cout << "My name is: " << name << endl; } catch (ArgException &e) // catch any exceptions { cerr << "error: " << e.error() << " for arg " << e.argId() << endl; } }