d5a206bb96
git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@413 7ec92016-0320-0410-acc4-a06ded1c099a
91 lines
2.2 KiB
C++
Executable file
91 lines
2.2 KiB
C++
Executable file
////////////////////////////////////////////////////////////////////////////////
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// The Loki Library
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// Copyright (c) 2005 by Curtis Krauskopf
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// Copyright (c) 2005 by Peter Kuemmel
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//
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// Code covered by the MIT License
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// The authors make no representations about the suitability of this software
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// for any purpose. It is provided "as is" without express or implied warranty.
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////////////////////////////////////////////////////////////////////////////////
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// A singleton LogClass object that resurrects itself after
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// it has been automatically destroyed during program
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// termination. When a dead-reference to the LogClass
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// singleton is detected, it is resurrected automatically.
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//
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// Expected output:
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// Example c'tor
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// LogClass c'tor
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// LogClass now instantiated.
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// LogClass d'tor
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// Example d'tor starting
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// LogClass c'tor
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// LogClass: inside Example d'tor
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// Example d'tor finished
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//
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// The last line of the output only appears when this
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// program is compiled with the ATEXIT_FIXED symbol
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// defined (see the Loki library and the CUJ article).
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//
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#include <iostream>
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#include <loki/Singleton.h> // for Loki::SingletonHolder
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using namespace std; // okay for small programs
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using namespace Loki; // okay for small programs
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class LogClass
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{
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public:
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LogClass()
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{
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echo("LogClass c'tor");
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}
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~LogClass()
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{
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echo("LogClass d'tor");
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}
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void echo(const char *s)
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{
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cout << s << endl;
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}
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};
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typedef SingletonHolder<LogClass, CreateUsingNew, PhoenixSingleton> LogBook;
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// A generic example class that stores and echoes a const char.
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//
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class Example
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{
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public:
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Example()
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{
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echo("Example c'tor");
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}
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~Example()
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{
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echo("Example d'tor starting");
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LogBook::Instance().echo("LogClass: inside Example d'tor");
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echo("Example d'tor finished");
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}
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void echo(const char *s)
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{
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cout << s << endl;
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}
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};
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int main(int argc, char* argv[])
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{
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Example *example = new Example();
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SetLongevity<Example, void (*)(Example*)>(example, 1, &Loki::Private::Deleter<Example>::Delete);
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LogBook::Instance().echo("LogClass now instantiated.");
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#if defined(__BORLANDC__) || defined(_MSC_VER)
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system("PAUSE");
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#endif
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return 0;
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}
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