c++编译代码使用100% CPU

我有以下代码(它得到所有的进程，然后搜索其中的正则表达式模式，代码为一个更大的个人项目的恶意软件检测)，代码做我想要的，但唯一的问题是使用100%的CPU，我做错了什么?内存分配不好?我用MS Visual Studio 2010 (cl.exe/EHsc mycode.cpp)编译了它

#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <tchar.h>
#include <tlhelp32.h>
#include <psapi.h>
#include <iostream>
#include <fstream>
#include <string>
#include <algorithm>
#include <iterator>
#include <regex>
using namespace std;
#pragma comment(lib, "psapi.lib") 
void PrintProcessNameAndID(DWORD);
void find_locs(HANDLE process);
void ListProcesses();
int main(int argc, char **argv) {
    ListProcesses();
}
void find_locs(HANDLE process) {
    unsigned char *p = NULL;
    MEMORY_BASIC_INFORMATION info;
    for ( p = NULL;
        VirtualQueryEx(process, p, &info, sizeof(info)) == sizeof(info);
        p += info.RegionSize )
    {
        std::string buffer;
        if (info.State == MEM_COMMIT &&
            (info.Type == MEM_MAPPED || info.Type == MEM_PRIVATE))
        {
            DWORD bytes_read;
            buffer.resize(info.RegionSize);
            ReadProcessMemory(process, p, &buffer[0], info.RegionSize, &bytes_read);
            buffer.resize(bytes_read);
            const std::tr1::regex rx("([\w-+]+(?:\.[\w-+]+)*@(?:[\w-]+\.)+[a-zA-Z]{2,7})");
            std::tr1::match_results<std::string::const_iterator> res; 
            std::tr1::regex_search(buffer, res, rx);
            ofstream myfile;
            myfile.open ("proc.txt", ios::app);
            for (unsigned int i=0; i<res.size(); ++i)
            {
                std::cout << res[i] << std::endl;
                myfile << res[i] << "n";
            }
            myfile.close();
        }
    }
}
void ListProcesses()
{
    DWORD aProcesses[1024];
    DWORD cbNeeded;
    DWORD cProcesses;
    unsigned int i;
    if (!EnumProcesses(aProcesses,sizeof(aProcesses),&cbNeeded))
        return;
    cProcesses = cbNeeded / sizeof(DWORD);
    for ( i = 0; i < cProcesses; i++ )
    {
        PrintProcessNameAndID(aProcesses[i]);
    }
}
void PrintProcessNameAndID(DWORD processID)
{
    TCHAR szProcessName[MAX_PATH]; // = TEXT("<unknown>");
    HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, processID);
    if (NULL != hProcess)
    {
        HMODULE hMod;
        DWORD cbNeeded;
        if (EnumProcessModules(hProcess, &hMod, sizeof(hMod),
             &cbNeeded))
        {
            GetModuleBaseName(hProcess, hMod, szProcessName,
                               sizeof(szProcessName)/sizeof(TCHAR));
        }
    }
    _tprintf(TEXT("pid: %u file: %sn"), processID, szProcessName);
    find_locs(hProcess);
    CloseHandle(hProcess);
}

谢谢你的帮助!