Do You Know How Is Size Of Structure Defined?

Size of the structure is defined based on multiplies of bigger data type member in the structure.

Example: If a structure contains integer, char, short data type, then size of the Structure will be multiples of size of Integer.

The following code snippet will explain the size of Structure.

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#include

struct Test1
{
    int a;
    char b;
    int c;
};

struct Test2
{
    char a;
    int b;
    char c;
};

struct Test3
{
    char a;
    char b;
    int c;
};

struct Test4
{
    int c;
    char a;
    char b;    
};

int main()
{
    struct Test1 t1;
    printf("%d\n",sizeof(t1));
    
    struct Test2 t2;
    printf("%d\n",sizeof(t2));

    struct Test3 t3;
    printf("%d\n",sizeof(t3));

    struct Test4 t4;
    printf("%d\n",sizeof(t4));    
    return 0;
}

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Output:

12
12
8
8