/*
 * =====================================================================================
 *
 * Filename: class.cpp
 *
 * Description:
 *
 * Version: 1.0
 * Created: 09/02/2017 03:44:36 PM
 * Last Modified: 2019年09月03日 00:17:20
 * Revision: none
 * Compiler: gcc
 *
 * Author: zt (),
 * Organization:
 *
 * =====================================================================================
 */

#include <stdio.h>
#include <stdlib.h>
#include <iostream>

using namespace std;

#pragma pack(push)
#pragma pack(1)
class A
{
 public:
 void a()
 {
 cout << "a" << endl;
 }
 protected:
 void b()
 {
 cout << "b" << endl;
 }

 public:
 uint8_t m_a;
 uint8_t m_b;
 uint8_t m_c;
 uint32_t m_d;
};

class B : public A
{
 public:
 void ba()
 {
 b();
 }
};

class C
{
 public:
 C()
 {
 a = 1;
 b = 2;
 c = 3;
 }
 void Print()
 {
 //int* p = reinterpret_cast<int*> ( this );
 //printf ( "%d sizeof(C)=%d\n", *p, ( int ) sizeof ( *this ) );
 printf ( "this=%p\n", this );
 }

 int a;
 char b;
 short c;
};
#pragma pack(pop)

int main ( int argc, char* argv[] )
{
 ( void ) argc;
 ( void ) argv;

 //A a;
 //a.a();
 //B b;
 //b.ba();

 //fprintf ( stderr, "sizeof A=%d\n", ( int ) sizeof ( a ) );
 //uint8_t* p = reinterpret_cast<uint8_t*> ( &a );
 //memset ( p, 0x55, sizeof ( a ) );
 //fprintf ( stderr, "%02x %02x %02x %04x\n", a.m_a, a.m_b, a.m_c, a.m_d );

 C c;
 c.Print();
 printf ( "instance = %p\n", &c );
 return 0;
}