Problem with fstream

#include <Windows.h>
#include <string>
#include <sstream>
#include <iostream> 
#include <ostream> 
#include <fstream>
#include <Psapi.h>
#include <ctime>
#include <io.h>
#include <fcntl.h>
#include <stdint.h>
#include <vector>

void CreateConsole()
{
	int hConHandle = 0;
	HANDLE lStdHandle = 0;
	FILE *fp = 0;

	// Allocate a console
	AllocConsole();

	// redirect unbuffered STDOUT to the console
	lStdHandle = GetStdHandle(STD_OUTPUT_HANDLE);
	hConHandle = _open_osfhandle(PtrToUlong(lStdHandle), _O_TEXT);
	fp = _fdopen(hConHandle, "w");
	*stdout = *fp;
	setvbuf(stdout, NULL, _IONBF, 0);

	// redirect unbuffered STDIN to the console
	lStdHandle = GetStdHandle(STD_INPUT_HANDLE);
	hConHandle = _open_osfhandle(PtrToUlong(lStdHandle), _O_TEXT);
	fp = _fdopen(hConHandle, "r");
	*stdin = *fp;
	setvbuf(stdin, NULL, _IONBF, 0);

	// redirect unbuffered STDERR to the console
	lStdHandle = GetStdHandle(STD_ERROR_HANDLE);
	hConHandle = _open_osfhandle(PtrToUlong(lStdHandle), _O_TEXT);
	fp = _fdopen(hConHandle, "w");
	*stderr = *fp;
	setvbuf(stderr, NULL, _IONBF, 0);
}

#include <iostream>
#include <Windows.h>
#include <tlhelp32.h>
#include <Psapi.h>


void MsgBoxAddy(DWORD addy)
{
	char szBuffer[1024];
	sprintf(szBuffer, "Addy: %02x", addy);
	MessageBox(NULL, szBuffer, "Title", MB_OK);

}




MODULEINFO GetModuleInfo( char *szModule )
{
	MODULEINFO modinfo = {0};
	HMODULE hModule = GetModuleHandle(szModule);
	if(hModule == 0) 
		return modinfo;
	GetModuleInformation(GetCurrentProcess(), hModule, &modinfo, sizeof(MODULEINFO));
	return modinfo;
}


void WriteToMemory(uintptr_t addressToWrite, char* valueToWrite, int byteNum)
{

	unsigned long OldProtection;

	VirtualProtect((LPVOID)(addressToWrite), byteNum, PAGE_EXECUTE_READWRITE, &OldProtection);


	memcpy( (LPVOID)addressToWrite, valueToWrite, byteNum);


	VirtualProtect((LPVOID)(addressToWrite), byteNum, OldProtection, NULL);
}


DWORD FindPattern(char *module, char *pattern, char *mask)
{

	MODULEINFO mInfo = GetModuleInfo(module);

	DWORD base = (DWORD)mInfo.lpBaseOfDll;
	DWORD size =  (DWORD)mInfo.SizeOfImage;

	DWORD patternLength = (DWORD)strlen(mask);

	for(DWORD i = 0; i < size - patternLength; i++)
	{
		bool found = true;
		for(DWORD j = 0; j < patternLength; j++)
		{

			found &= mask[j] == '?' || pattern[j] == *(char*)(base + i + j);
		}

		if(found) 
		{
			return base + i;
		}
	}

	return NULL;
}

#include "Functions.h"
#include "Header.h"
#include <fstream>

using namespace std;


void DoStuff()
{

	DWORD hpAddy = FindPattern("S4Client.exe", "\x83\xC0\x01\x8B\x8D\xC8", "xxxxxx");
	hpAddy+=0;

	CreateConsole();
	SetConsoleTitle("Address Searcher");
    system("COLOR 0A");
	cout << "The addy is 0x" << uppercase << hex << hpAddy;

	ofstream myfile;
    myfile.open ("addys.txt");
	myfile << "The address for the training func is : 0x " << hpAddy;
    myfile.close();
	
}



#pragma endregion




BOOL WINAPI DllMain(
    HINSTANCE hinstDLL,  
    DWORD fdwReason, 
    LPVOID lpReserved) 
{

    switch(fdwReason)
    {
        case DLL_PROCESS_ATTACH:
			DoStuff();
            break;
    }
    // Successful DLL_PROCESS_ATTACH.
    return TRUE;
}