why that line error?

Question

#include <iostream>
using namespace std;

int main() {

int a= 5;
int b= 55;
int c= 555;

int d= (c%b) > (c%a)?5:55;
int e= (c%b) > (c%a);
//int f= 5:55; <---- error
cout << d << endl ;
cout << "c%b = " << c%b << endl ;
cout << "c%a = " << c%a << endl ;
cout << "((c%b) > (c%a)) = " << ((c%b) > (c%a)) << endl ;
cout << "e = " << e << endl ;
//cout << "5:55 = " << f << endl ;< --- //error

return 0;
}

Answer 1

Because you are trying to use ":" without "?"

the syntax is as below
int f = (boolean logic) ? valueIfTrue : valueIfFalse;

If this answer is not you expected then you will have to specify what exactly you are trying to assign to "f" variable?

Answer 2

Thank you verymuch Milind. i'm get it now.