초보 개발자 로니강(Ronie.Kang) -

The Licenses

The following is a rough guide to the current licenses supported on The Code Project. Please read them carefully by following the links to the license pages themselves because some categorisations (such as whether code can be used commercially, or whether extensions must be release to the public) depends on the situtation. This is merely a guide: it's up to you to read the actual license carefully before using code licensed by each license or assigned a license to code you submit.

The main points subject to the terms of the License are:

Source Code and Executable Files can be used in commercial applications;
Source Code and Executable Files can be redistributed; and
Source Code can be modified to create derivative works.
No claim of suitability, guarantee, or any warranty whatsoever is provided. The software is provided "as-is".

Based on the Mozilla Public License (MPL) that makes it more applicable for use outside the Mozilla Foundation.

Used by Microsoft. Compiled derived code can be distributed, for both commercial and non-commercial use. The source code, however, cannot be redistributed

Used by Mozilla and Firefox, among others. The patent clauses are not acceptable to some.

Derived from the IBM Public License and influenced by the Mozilla Public License, and used by some Microsoft projects on SourceForge.

A newer version of the Common Public License that is in some cases more acceptable to business.

A very old license with essentially no restrictions on the use of the code. It also provides very little in the way of protection for authors or users. It is the same as the BSD license without the 'no endorsement' clause.

A very old license with essentially no restrictions on the use of the code. It also provides very little in the way of protection for authors or users. It is the same as the MIT license except that it includes a clause preventing the use of the author's name for endorsement.

Slightly more restrictive (but still very open) version of the BSD or MIT license that adds patent clauses. Read carefully.

A license that requires a link be visible on works that use this license. "Share alike" is what it sounds, you can share this work as long as that work has a license similar to this one.

A license with an emphasis on freedom of use and re-use, with a few restrictions.

A derivative of the GPL that was intended to allow non-GPL code to work with, and call GPL code. The author of this license asks that you only use this license if your are licensing functionality already commonly available.

A common but misunderstood license. This allows developers to freely use the software as long as they use the same (or an even less restrictive) license for parts of the program that they wrote themselves. Viral in nature. Read carefully and make sure you understand the implications of using this license. Unacceptable to many.

Introduction

Sometimes we have to code with 'singleton'. If you don't know what Singleton is, you can read about it in many Design Pattern books. Singleton principle is really simple.

As you know, if you use reference pointer for singleton object, then you must delete it when program terminates. But it will be good because it does 'late instance'.

I want to terminate singleton object automatically, and instance lately. So, I coded this.

Good things:

Late instance.
Safe terminate automatically.
Separated code for Object and Singleton.

Here is my tiny singleton helper class - CSingletonT<>, and I hope it helps you.

//
// Using singletonT class
//
#include "SingletonT.h"

// test class
class CObj
{
protected:
    CObj(){ x = 0 ; TRACE("Created CObj\r\n"); }
public:
    virtual ~CObj(){ x = 0 ; TRACE("Deleted CObj\r\n");}

    int x;
};

// Testing
void CTestSingleTDlg::OnButton1() 
{
    // TODO: Add your control notification handler code here
    // if first call, then singleton object will instance ( instance lately ) 
        CObj* o = CSingletonT<CObj>::GetObject();

    // use singletone object
    o->x ++;

    TRACE("o->x = %d\r\n",o->x);
}

------------------------------------------------------------------------------------

싱글톤에 조금은 벗어났지만,활용 할 수 있는 방법은 많다고 생각 됩니다.

원문을 보고 싶으시다면  아래로...

정확한 출처는 CodeProject 입니다.



http://www.codeproject.com/cpp/singlet.asp

우리 나라 분이 작성한 글입니다

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The Licenses

The Code Project Open License (CPOL)

Common Development and Distribution License (CDDL)

Microsoft Public License (Ms-PL)

Mozilla Public License 1.1 (MPL 1.1)

Common Public License Version 1.0 (CPL)

Eclipse Public License 1.0

The MIT License

The BSD License

Apache License, Version 2.0

Creative Commons Attribution-ShareAlike 2.5 License

The zlib/libpng License

GNU Lesser General Public License

The GNU General Public License (GPL)

Introduction