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/* Project Software Engineer Mr Gregory Hicks BIT Sydney Australia (C) 2006 This code may be used provided credit is given for the source */ #include <cstdlib> #include <iostream> using namespace std; int getUserInput ( const char* msg , const int min , const int max , const int quit ) ; char getUserInput ( const char* msg , const char min , const char max , const char quit ) ; // The alternative way is with a template. We loose the return type and replace // that with a pointer to the value to modify //template < class T > //void getUserInput ( const char* msg , const T min , const T max , const T quit , T * value ) ; //{ // T input ; // // do { // cout << msg << " (Range: " << min << " to " << max << " , quit= " << quit << "): " ; // cin >> input ; // } while ( input != quit && ( input < min || input > max ) ) ; // value = input ; //} int main(int argc, char *argv[]) { int t = getUserInput ( "Enter an integer" , 0 , 10 , -1 ) ; if ( t != -1 ) cout << " Integer entered is: " << t << endl ; char c = getUserInput ( "Enter a letter" , 'A' , 'z' , '0' ) ; if ( c!= '0' ) cout << "Letter entered is: " << c << endl ; system("PAUSE"); return EXIT_SUCCESS; } /* Purpose: To get an integer input from the user Accepts: msg - display message Min - smallest acceptable value Max - largest acceptable value quit - value to detect user wants to quit Returns: users input */ int getUserInput ( const char* msg , const int min , const int max , const int quit ) { int input ; do { cout << msg << " (Range: " << min << " to " << max << " , quit= " << quit << "): " ; cin >> input ; } while ( input != quit && ( input < min || input > max ) ) ; return input ; } /* Purpose: To get an char input from the user Accepts: msg - display message Min - smallest acceptable value Max - largest acceptable value quit - value to detect user wants to quit Return: user entry */ char getUserInput ( const char* msg , const char min , const char max , const char quit ) { char input ; do { cout << msg << " (Range: " << min << " to " << max << " , quit= " << quit << "): " ; cin >> input ; } while ( input != quit && ( input < min || input > max ) ) ; return input ; }
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