Re: Singleton pattern

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#457

From: heejune kim
Date: Mon, 21 Jan 2002 02:35

32 lines
2414 bytes

> class MazeFactory
> {
> public:
>  static MazeFactory* Instance();
> protected:
>  MazeFactory(); // change this line to 'MazeFactory() {;}'
>
> private:
>  static MazeFactory* _instance;
> };
>

> ERROR MESSAGE :-
>
> --------------------Configuration: ProjTemplate - Win32
> Release--------------------
> Compiling...
> main.cpp
> test.cpp
> Generating Code...
> Linking...
> test.obj : error LNK2001: unresolved external symbol "protected:
__thiscall
> MazeFactory::MazeFactory(void)" (??0MazeFactory@@IAE@XZ)
> Release/ProjTemplate.exe : fatal error LNK1120: 1 unresolved externals
> Error executing link.exe.
>
> ProjTemplate.exe - 2 error(s), 0 warning(s)

in header, constructor defined, but its implementation doens't exist. so
unresolved symbol error occuered. So,  that code has to be edited blank
constructor implementation provided.

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From: "heejune kim" <STOPSPAMdrost@securewiz.net>
Newsgroups: alt.comp.lang.learn.c-c++,alt.language.patterns,borland.public.cpp.turbocpp,comp.lang.c++,comp.os.msdos.programmer.turbovision,comp.software.patterns
Subject: Re: Singleton pattern
Date: Mon, 21 Jan 2002 11:35:41 +0900
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