Arrays vs. Structs

• Array elements are all the same type (homogeneous).

  Not so with structs:

    struct foo {
        int a;
        double b;
        char c;
        string d;
    }

• Arrays are accessed through indexes: array[i]

  Structs are accessed through members: struct.member

• An array name is an address of the beginning of the array in memory. If an array is given as an argument to a function, the address is passed.

  If a struct name is given as an argument to a function, the struct itself is passed. (More on this later.)