difference between array of class and array of structure?-CodePudding

I was wondering what the difference between the two.

Source: https://www.geeksforgeeks.org/array-of-structures-vs-array-within-a-structure-in-c-and-cpp/

Sample Array of Structure

#include <stdio.h>

struct class {
    int roll_no;
    char grade;
    float marks;
};

void display(struct class class_record[3])
{
    int i, len = 3;

    for (i = 0; i < len; i  ) {
        printf("Roll number : %d\n",
            class_record[i].roll_no);
        printf("Grade : %c\n",
            class_record[i].grade);
        printf("Average marks : %.2f\n",
            class_record[i].marks);
        printf("\n");
    }
}

int main()
{
    struct class class_record[3]
        = { { 1, 'A', 89.5f },
            { 2, 'C', 67.5f },
            { 3, 'B', 70.5f } };

    display(class_record);
    return 0;
}

CodePudding user response：

There is no difference between a class type and a structure type in C . They are the same thing.

The code you are showing is C and not valid C . In C class is a keyword and can not be used to name a type.

You create an array of a class type in C exactly in the same way as you create an array of any other type:

class C { }; // or identically struct instead of class

C c[123];

Here c is an array of 123 C objects.