#include <iostream>
 
//#pragma pack(push, 1)
struct alignas(16) Test
{
    alignas(4) int32_t a; // 4 bytes
    alignas(4) int8_t b; // 4 byte
    alignas(4) int8_t c; // 4 byte
};
//#pragma pack(pop)
 
//#pragma pack(push, 1)
struct Test2
{
    alignas(4) int32_t a; // 4 bytes
    alignas(4) int8_t b; // 4 byte
    alignas(4) int8_t c; // 4 byte
};
//#pragma pack(pop)
 
//#pragma pack(push, 1)
struct Test3
{
    int32_t a; // 4 bytes
    int8_t b; // 1 byte
    int8_t c; // 1 byte
};
//#pragma pack(pop)
 
int main() {
	std::cout<<"Test 1:\n";
	std::cout<<(sizeof(Test))<<"\n";
	std::cout<<(alignof(Test))<<"\n";
 
	std::cout<<"a: "<<offsetof(Test, a)<<"\n";
	std::cout<<"b: "<<offsetof(Test, b)<<"\n";
	std::cout<<"c: "<<offsetof(Test, c)<<"\n";
 
	std::cout<<"------\n";
	std::cout<<"Test 2:\n";
 
	std::cout<<(sizeof(Test2))<<"\n";
	std::cout<<(alignof(Test2))<<"\n";
 
	std::cout<<"a: "<<offsetof(Test2, a)<<"\n";
	std::cout<<"b: "<<offsetof(Test2, b)<<"\n";
	std::cout<<"c: "<<offsetof(Test2, c)<<"\n";
 
	std::cout<<"------\n";
	std::cout<<"Test 3:\n";
 
	std::cout<<(sizeof(Test3))<<"\n";
	std::cout<<(alignof(Test3))<<"\n";
 
	std::cout<<"a: "<<offsetof(Test3, a)<<"\n";
	std::cout<<"b: "<<offsetof(Test3, b)<<"\n";
	std::cout<<"c: "<<offsetof(Test3, c)<<"\n";
	return 0;
}

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