C++ Initialize Structs

#include <iostream>
#include <string>
using namespace std;

struct product {
  string name;  int weight;  double price;
} ;

void use (product*);

int main() {
product apple = {"McIntosh Apple", 12, 1.50};
cout << "Name: " << apple.name << endl;
cout << "Weight: " << apple.weight << endl;
cout << "Price: $" <<apple.price << endl << endl;

cout << sizeof(apple) << " >= " <<
sizeof(apple.name) <<  " + " <<
sizeof(apple.weight) << " + " <<
sizeof(apple.price) << endl <<endl;

product*  aptr = &apple;
cout << "Product Name: " << aptr->name << endl;
cout << "Weight: "<<  aptr->weight << endl;
cout << "Price: $" << aptr->price << endl << endl;

use(aptr);
cout << "After Using Product: " << aptr->name << endl;
cout << "Weight: "<<  aptr->weight << endl;
cout << "Price: $" << aptr->price << endl << endl;
}

void use (product* a) {
    a->weight = a->weight / 2;
    a->price = a->price / 4;
}