How can I use a struct array In a class? C++?

Question

Maybe this is a dumb questions but, how can I use a struct array in a class?

Class Products {
Private:
Struct s_products {
String name;
Int code;
};
s _products product[100];
};

Is this the right way to declare a struct array inside a class If I want to have 100 products where contains 100 names and 100 codes?

Answer 1

There are a few ways to do it. You can either declare the struct outside the class, and declare an array of that struct inside the class:

struct product {
// struct members
};

class Products {
product prod_arr[100];
};

or you can define the struct array with the struct definition directly, creating an unnamed struct.

class Products {
struct {
// struct members
} prod_arr[100];
};

Answer 2

you can also use constructor inside an structure and use that to manipulation.

struct Point
{
int x;
int y;
};

It is also possible to add a constructor (this allows the use of Point(x, y) in expressions):

struct Point
{
int x;
int y;
Point(int ax, int ay): x(ax), y(ax) {}
};

Point can also be parametrized on the coordinate type:

template<typename Coordinate> struct point
{
Coordinate x, y;
};

// A point with integer coordinates
Point<int> point1 = { 3, 5 };

// a point with floating point coordinates
Point<float> point2 = { 1.7, 3.6 };

Of course, a constructor can be added in this case as well.