C / C++ / MFC

//case 1
2153 // not using pool
16 // using pool
//case 2
15 // not using pool
32 // using pool
// case 3
2668 // not using pool
14976 // using pool
Press any key to continue . . .

#include <process.h>
#include "test.h"

int wmain()
{
	test0(10000);
	test1(10000);
	test2(10000);
	test3(10000);
	test4(10000);
	test5(10000);
	system("pause");
	return 0;
}

#pragma once

void test0(int loops);
void test1(int loops);
void test2(int loops);
void test3(int loops);
void test4(int loops);
void test5(int loops);

#include <iostream>
#include <vector>
#include <boost/pool/pool.hpp>
#include <boost/pool/object_pool.hpp>
#include <boost/pool/pool_alloc.hpp>
#include <windows.h>
#include "test.h"

using namespace std;

class AAA
{
public:
	AAA()
	{
//		cout << "con"  << endl;
	}
	~AAA()
	{
//		cout << "descon" << endl;
	}
public:
	int a;
	char b;
	short int c;
	vector<int> d;
};

void test0(int loops)
{
	char ** p = new char*[loops];

	DWORD tick = GetTickCount();	

	for (int i=0; i<loops; ++i)
		p[i] = new char[32];

	for (int i=0; i<loops; ++i)
		delete []p[i];

	long n = GetTickCount() - tick;

	cout << n << endl;

	delete []p;
};

void test1(int loops)
{
	char ** p = new char*[loops];

	DWORD tick = GetTickCount();

	boost::pool<> memory_pool(32);	

	for (int i=0; i<loops; ++i)
		p[i] = (char*)memory_pool.malloc();

	for (int i=0; i<loops; ++i)
		memory_pool.free(p[i]);

	long n = GetTickCount() - tick;

	cout << n << endl;

	delete []p;
};

void test2(int loops)
{
	DWORD tick = GetTickCount();
	std::vector<int> v;
	for (int i=0; i<loops; ++i)
		v.push_back(i);
	long n = GetTickCount() - tick;
	cout << n << endl;
}

void test3(int loops)
{
	DWORD tick = GetTickCount();
	std::vector<int, boost::pool_allocator<int> > v;
	for (int i=0; i<loops; ++i)
		v.push_back(i);
	long n = GetTickCount() - tick;
	cout << n << endl;
}

void test4(int loops)
{
	AAA ** aa = new AAA*[loops];

	DWORD tick = GetTickCount();	

	for (int i=0; i<loops; ++i)
		aa[i] = new AAA;

	for (int i=0; i<loops; ++i)
		delete aa[i];

	long n = GetTickCount() - tick;
	cout << n << endl;

	delete []aa;
}

void test5(int loops)
{
	AAA ** aa = new AAA*[loops];

	DWORD tick = GetTickCount();

	boost::object_pool<AAA> obj_pool;	

	for (int i=0; i<loops; ++i)
		aa[i] = obj_pool.construct();

	for (int i=0; i<loops; ++i)
		obj_pool.destroy(aa[i]);

	long n = GetTickCount() - tick;
	cout << n << endl;

	delete []aa;
}

hdc_mem = CreateCompatibleDC(hDC);

bmp_mem = CreateCompatibleBitmap(hDC, 80, 25);

hdc_mem = LoadBitmap(hInst, MAKEINTRESOURCE(ID_for_BMP)); // problematic line

SelectObject(hdc_mem, bmp_mem);

BitBlt(hDC, 100, 50, 180, 75, hdc_mem, 0, 0, SRCCOPY);

DeleteDC (hDC);

DeleteDC (hdc_mem);

DeleteObject (bmp_button);