From: pderocco@ix.netcom.com   
      
   > On 8/30/2013 12:28 PM, Richard Phillips wrote:   
   >   
   > Going forward, I'm keen to start using RAII on projects, but in order   
   > to justify my future evangelism, I want to clarify a few things...   
   >   
   > So, borrowing an example from Jon Kalb's excellent tutorial videos:   
   >   
   > // BAD   
   > {   
   > 	dosomething();   
   > 	cleanup();   
   > }   
   >   
   >   
   > // GOOD (RAII)   
   > {   
   > 	CleanupType cleanup;   
   > 	dosomething();   
   > }   
   >   
   >   
   > // ????   
   > {   
   > 	try   
   > 	{   
   > 		dosomething();   
   > 		cleanup();   
   > 	}   
   > 	catch (const std::exception& ex)   
   > 	{   
   > 		cleanup();   
   > 	}   
   > 	catch (...)   
   > 	{   
   > 		cleanup();   
   > 	}   
   > }   
   >   
   > Why is the 2nd (RAII) approach superior to the third approach?  I   
   > presume there's more to it than "appearance"?  While the third   
   > approach looks more complicated, it doesn't have to worry about a   
   > "CleanupType"...   
      
   In addition to what everyone else has said, the 3rd approach is quite a   
   bit less efficient than the 2nd, when an exception is thrown. In some   
   compilers, it is less efficient even when no exception is thrown.   
      
   --   
      
   Ciao,           Paul D. DeRocco   
   Paul            mailto:pderocco@ix.netcom.com   
      
      
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