Structure and Function in C++

Structure and Function in C++

Structure variables is pass to a function and return in a same way as regular parameter

Passing structure to function in C++

A structure variable is passed to a function in same way as normal argument.

Program of passing structure to function in C++

#include <iostream>
using namespace std;

struct Emp {
    char name[50];
    int age;
    float salary;
};

void displayData(Emp);   // Function declaration

int main() {
    Emp e;

    cout << "Enter name: ";
    cin.get(e.name, 50);
    cout << "Enter age: ";
    cin >> e.age;
    cout << "Enter salary: ";
    cin >> e.salary;

    displayData(e);

    return 0;
}

void displayData(Emp e) {
    cout << "\n Information." << endl;
    cout << "Name: " << e.name << endl;
    cout <<"Age: " << e.age << endl;
    cout << "Salary: " << e.salary;
}

Output

Enter Full name: John Jain
Enter age: 50
Enter salary: 30000

Information.
Name: John Jain
Age: 50
Salary: 30000

Returning structure from function in C++

Program of Returning structure from function in C++

#include <iostream>
using namespace std;
struct Student{
   char stuName[50];
   int stuRollNo;
   int stuAge;
};
Student getStudentInfo();
void printStudentInfo(Student);
int main(){
   Student s;
   s = getStudentInfo();
   printStudentInfo(s);
   return 0;
}

Student getStudentInfo(){
   Student s;
   cout<<"Enter Student Name: ";
   cin.getline(s.stuName, 30);
   cout<<"Enter Student Roll No: ";
   cin>>s.stuRollNo;
   cout<<"Enter Student Age: ";
   cin>>s.stuAge;
   return s;
}
void printStudentInfo(Student s){
   cout<<"Student Record:"<<endl;
   cout<<"Name: "<<s.stuName<<endl;
   cout<<"Roll No: "<<s.stuRollNo<<endl;
   cout<<"Age: "<<s.stuAge;
}

Output

Enter Student Name: Kamya Singh
Enter Student Roll No: 667382
Enter Student Age: 20
Student Record:
Name: Kamya Singh
Roll No: 667382
Age: 20

Read more, Structures in C++