http://www.daniweb.com – I would like to have the user enter ctrl-z to end the program...can someone tell me how to insert this into the following program? //Program to calculate greatest common denominator of two integers #include <iostream> using namespace std; int calcGCD(int, int); int main() { int a, b, res; cout <<"This program will determine the greatest common divisor of " << "two positive integers. "; cout <<endl; cout << "Please input your first positive number: "; cin >> a; cout << "Please input your second positive number: "; cin >> b; cout <<endl; while ( a > 0 && b > 0 ) { res = calcGCD ( a, b ); cout << "Greatest common divisior (GCD) of "<< a <<" and "<<b<<" is "<<res; cout <<endl; cout <<endl; cout << "Please input your first positive number: (or ctrl-z to end program) "; cin >> a; cout << "Please input your second positive number: "; cin >> b; } system ("pause"); return 0; } int calcGCD (int a, int b) { int c; if ( a < b ) swap (a, b); c = a % b; if ( c == 0 ) return b; calcGCD ( b, c ); } /* if ( b > a ) swap (a, b); while ( b != 0 ) { temp = b; b = a - b; a = temp; if ( b > a ) swap (a, b); } return GCD; system ("pause"); return 0; }*/ (General)
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