C / C++ / MFC

SOCKET sock = (SOCKET) wParam;
if(WSAGETSELECTERROR(lParam)){
       DeleteClient(sock);
       return;
}

switch(WSAGETSELECTEVENT(lParam)){
case FD_ACCEPT:
          sClient = accept(wParam, (struct sockaddr *)&client, &iAddrSize);
          // Add to the CPtrList
          // ......
          WSAAsyncSelect(sClient, hwnd, WM_SOCKET, FD_READ | FD_CLOSE);
          break;

case FD_READ:
          ReadData(sock);         // Paser the data.
          break;

case FD_CLOSE:
          DeleteClient(sock);     //Del from the CPtrList.
          break;

default:
          break;
}

struct MyStruct{
    int int1;
    bool bool1;
};

void MyFunction(MyStruct myStruct)
{
	cout << myStruct.bool1 << endl;
}

int _tmain(int argc, _TCHAR* argv[])
{
	list<MyStruct> structList;
	list<MyStruct>::iterator structIterator;
	
	MyStruct myStruct;
	MyStruct myStruct2;

	myStruct.int1 = 2;
	myStruct.bool1 = true;

	myStruct2.bool1 = false;
	myStruct2.int1 = 5;

	structList.push_back(myStruct);
	structList.push_back(myStruct2);

	structIterator = structList.begin();

	while (structIterator != structList.end())
	{
		MyFunction(structIterator);  
		structIterator++;
	}
	return 0;
}

#include "stdafx.h"
#include <conio.h>

typedef struct MyStruct{
	int i;
	int j;
	int k;
} TheStruct;

int MoveBack(int *iPos);

int main(int argc, char* argv[])
{
	TheStruct ts[500];
	int i = 0;

	for(i = 0; i < 500; i++)
	{
		ts[i].i = i * i + 1;
		ts[i].j = i * i + 2;
		ts[i].k = i * i + 3;
	}

	for(i = 0; i < 500; i++)
	{
		printf("%ld, %ld, %ld \r\n" ,ts[i].i ,ts[i].j, ts[i].k);

		if(i == 499)
		{
			//Pointer - Move back to last record
			printf("The Last Record is : %ld" , MoveBack(&ts[i].k));
		}
		
	}

	while(!getch());
	
	return 0;
}

int MoveBack(int *iPos)
{
	int *i = iPos - sizeof(TheStruct);
	return *i;
}