Why does reading a record struct fields from std::istream fail, and how can I fix it?

Question

Suppose we have the following situation:

• A record struct is declared as follows

---

struct Person {
    unsigned int id;
    std::st         


        

Answer 1

One viable solution is to reorder input fields (if this is possible)

ID      Age Forename Lastname
1267867 32  John     Smith    
67545   36  Jane     Doe      
8677453 56  Gwyneth  Miller   
75543   23  J. Ross  Unusual  
...

and read in the records as follows

#include 
#include 

struct Person {
    unsigned int id;
    std::string name;
    uint8_t age;
    // ...
};

int main() {
    std::istream& ifs = std::cin; // Open file alternatively
    std::vector persons;

    Person actRecord;
    unsigned int age;
    while(ifs >> actRecord.id >> age && 
          std::getline(ifs, actRecord.name)) {
        actRecord.age = uint8_t(age);
        persons.push_back(actRecord);
    }

    return 0;
}