Invalid initialization of non-const reference of type

Question

In the following code, I\'m not able to pass a temporary object as argument to the printAge function:

struct Person {
  int age;
  Person(int _a         


        

Answer 1

Simply make your print function take your argument by const&. This is also logically right as it doesn't modify your argument.

void printAge(const Person &person) {
   cout << "Age: " << person.age << endl;
}

The actual problem is the other way around. You are passing a temporary(rvalue) to a function which expects an lvalue.