使用宏_CRTDBG_MAP_ALLOC 查找程序内存泄露

#include "stdafx.h"
#include <iostream>
using namespace std;

#include <stdio.h>

#define _CRTDBG_MAP_ALLOC 
#include <stdlib.h> 
#include <crtdbg.h>

#include "windows.h"


int main()
{
    int *a = new int;
    _CrtDumpMemoryLeaks();
    return 1;
}

Detected memory leaks!
Dumping objects ->
{122} normal block at 0x00036660, 4 bytes long.
 Data: <    > CD CD CD CD 
Object dump complete.