C ++类终止

Question

I have declared a class and instantiated a class in one and expected it to fire

~CLog();

But for some reason, it does not. Does anybody see any obvious errors why this could happen?

I declared the class within a void that ends, so it SHOULD fire, I think. I do not destroy the class explicitely, but I simply expected it to go out of out scope automatically and terminate.

#pragma once
#include <fstream>
using namespace std;

class CLog 
{
  public:
    CLog(wstring filename);
    ~CLog();
    void WriteString(wstring uString);
  private:
    wofstream m_stream;
    wstring m_sPath;
};

#include "log.h";
#include "strhelper.h"

#include <fstream>
#include <iostream>
#include <string>
#include <locale>
#include <codecvt>

wstring m_sText=L"";
wstring m_sPath=L"";

CLog::CLog(wstring uPath) 
{
    m_sPath=uPath;
}
void CLog::WriteString(wstring uString)
{
    m_sText+=uString;
    m_sText+=L"\n";
}
CLog::~CLog()
{

    if (FileExists(m_sPath))
    {
        DeleteFile(m_sPath);
    }

    //open for appending
    m_stream.imbue(std::locale(std::locale::empty(), new std::codecvt_utf8<wchar_t,0x10ffff,std::generate_header>));
    m_stream.open(m_sPath,fstream::in | fstream::out | fstream::app); 

    m_stream << m_sText.c_str();

    m_stream.close();
}

I am using Clog like this

void foo() {
  wstring sLogPath;
  sLogPath=GetSpecialFolderDesktop() + L"\\load.log";
  CLog *pLog = new CLog(sLogPath);
  pLog->WriteString(L"Something);
}

I am using VC2010.

Answer 1

You are instantiating dynamically the CLog . In that case, you need to delete it explicitly. If you create it on the stack Clog log(sLogPath) , the destructor will be called when the object goes out of scope.