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/ / FILE: sequence _ test.cxx / / An interactive test program for the new sequence class#include / / Provides toupper#include / / Provides cout

// FILE: sequence_test.cxx// An interactive test program for the new sequence class#include // Provides toupper#include // Provides cout and cin#include // Provides EXIT_SUCCESS#include "sequence1.h"// With value_type defined as doubleusing namespace std;using namespace main_savitch_3;// PROTOTYPES for functions used by this test program:void print_menu();// Postcondition: A menu of choices for this program has been written to cout.char get_user_command();// Postcondition: The user has been prompted to enter a one character command.// The next character has been read (skipping blanks and newline characters),// and this character has been returned.void show_sequence(sequence display);// Postcondition: The items on display have been printed to cout (one per line).double get_number();// Postcondition: The user has been prompted to enter a real number. The// number has been read, echoed to the screen, and returned by the function.int main(){ sequence test; // A sequence that well perform tests on char choice; // A command character entered by the user cout << "I have initialized an empty sequence of real numbers." << endl; do { print_menu(); choice = toupper(get_user_command()); switch (choice){ case '!': test.start(); break; case '+': test.advance(); break; case '?': if (test.is_item()) cout << "There is an item." << endl; else cout << "There is no current item." << endl; break; case 'C': if (test.is_item()) cout << "Current item is: "<< test.current()<< endl; else cout << "There is no current item." << endl; break; case 'P': show_sequence(test); break; case 'S': cout << "Size is "<< test.size()<<'.'<< endl; break; case 'I': test.insert(get_number()); break; case 'A': test.attach(get_number()); break; case 'R': test.remove_current(); cout << "The current item has been removed." << endl; break; case 'Q': cout << "Ridicule is the best test of truth." << endl; break; default: cout << choice <<" is invalid." << endl; }} while ((choice !='Q')); return EXIT_SUCCESS;}void print_menu()// Library facilities used: iostream.h{ cout << endl; // Print blank line before the menu cout << "The following choices are available: "<< endl; cout <<"! Activate the start() function" << endl; cout <<"+ Activate the advance() function" << endl; cout <<"? Print the result from the is_item() function" << endl; cout <<" C Print the result from the current() function" << endl; cout <<" P Print a copy of the entire sequence" << endl; cout <<" S Print the result from the size() function" << endl; cout <<" I Insert a new number with the insert(...) function" << endl; cout <<" A Attach a new number with the attach(...) function" << endl; cout <<" R Activate the remove_current() function" << endl; cout <<" Q Quit this test program" << endl;}char get_user_command()// Library facilities used: iostream{ char command; cout << "Enter choice: "; cin >> command; // Input of characters skips blanks and newline character return command;}void show_sequence(sequence display)// Library facilities used: iostream{ for (display.start(); display.is_item(); display.advance()) cout << display.current()<< endl;}double get_number()// Library facilities used: iostream{ double result; cout << "Please enter a real number for the sequence: "; cin >> result; cout << result <<" has been read." << endl; return result;}

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