1: // Filename: CSTR2.CPP 2: // Purpose: Illustrates C-style strings: input with cin, comparison, 3: // and output with cout. 5: #include <iostream> 6: #include <cstring> 7: using namespace std; 9: #include "PAUSE.H" 11: int main() 12: { 13: cout << endl; 14: cout << "This program illustrates input with cin, " 15: << "comparison, and more output with " << endl 16: << "cout, of C-strings. Study the source " 17: << "code while running it. In response to " << endl 18: << "each prompt, enter either two strings, " 19: << "each containing 10 or fewer characters, " << endl 20: << "or an end-of-line to quit. " << endl; 21: cout << endl; 22: Pause(0); cout << endl; 24: typedef char String10[11]; 25: String10 s1, s2; 27: cout << "Enter the two strings below: " << endl; 28: cin >> s1 >> s2; cin.ignore(80, '\n'); 30: while (cin) 31: { 32: cout << "The two strings entered and read " 33: << "are on the next two lines:" << endl; 34: cout << s1 << "<<" << endl; 35: cout << s2 << "<<" << endl; 36: Pause(0); cout << endl; 38: // The following three if-statements, written separately here to 39: // show each of the three possibilities in full, would normally 40: // be written as a nested if with an else at the end. 41: if (strcmp(s1, s2) == 0) 42: cout << "Those two strings were the same."; 43: if (strcmp(s1, s2) < 0) 44: cout << "The 1st string precedes the " 45: << "2nd string, alphabetically."; 46: if (strcmp(s1, s2) > 0) 47: cout << "The 2nd string precedes the " 48: "1st string, alphabetically."; 49: cout << endl << endl; 50: Pause(0); cout << endl; 52: cout << "Enter the two strings below: " << endl; 53: cin >> s1 >> s2; cin.ignore(80, '\n'); 54: } 56: cout << endl; 58: return 0; 59: }