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COM: IEnumXXXX to STL-style iterator wrapper class

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24 Feb 2000CPOL 58.1K   922   37  
A simplified method to enumerate a collection of objects.
#ifndef __UTILS__
#define __UTILS__
///////////////////////////////////////////////////////////////////////////////
//
// File           : $Workfile:   Utils.hpp  $
// Version        : $Revision:   1.2  $
// Function       : 
//
// Author         : $Author:   Len  $
// Date           : $Date:   Jun 06 1998 07:47:48  $
//
// Notes          : Things that don't fit anywhere else...
//
// Modifications  :
//
// $Log:   D:/Documents/JetByte/Source/JetByteTools/Win32Tools/PVCS/Utils.hpv  $
// 
//    Rev 1.2   Jun 06 1998 07:47:48   Len
// External include guards.
// 
//    Rev 1.1   May 25 1998 10:55:42   Len
// Added a guard around the DEBUG_ONLY define as it's also defined in one
// of the standard MFC headers...
// 
//    Rev 1.0   May 18 1998 07:49:28   Len
// Initial revision.
// 
//    Rev 1.0   Dec 28 1997 12:16:10   Len
// Initial revision.
// 
///////////////////////////////////////////////////////////////////////////////
//
// Copyright 1997 JetByte Limited.
//
// JetByte Limited grants you ("Licensee") a non-exclusive, royalty free, 
// licence to use, modify and redistribute this software in source and binary 
// code form, provided that i) this copyright notice and licence appear on all 
// copies of the software; and ii) Licensee does not utilize the software in a 
// manner which is disparaging to JetByte Limited.
//
// This software is provided "AS IS," without a warranty of any kind. ALL
// EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING 
// ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE 
// OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. JETBYTE LIMITED AND ITS LICENSORS 
// SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF 
// USING, MODIFYING OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO 
// EVENT WILL JETBYTE LIMITED BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, 
// OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE 
// DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING 
// OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, EVEN IF JETBYTE LIMITED 
// HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
//
// This software is not designed or intended for use in on-line control of
// aircraft, air traffic, aircraft navigation or aircraft communications; or in
// the design, construction, operation or maintenance of any nuclear
// facility. Licensee represents and warrants that it will not use or
// redistribute the Software for such purposes.
//
///////////////////////////////////////////////////////////////////////////////

#pragma warning(disable: 4201)   // nameless struct/union

#ifndef _WINDOWS_
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#undef WIN32_LEAN_AND_MEAN
#endif

#ifndef _INC_TCHAR
#include <tchar.h>
#endif

#pragma warning(default: 4201)

///////////////////////////////////////////////////////////////////////////////
// Namespace: JetByteTools
///////////////////////////////////////////////////////////////////////////////

namespace JetByteTools {

///////////////////////////////////////////////////////////////////////////////
// Debugging defines...
///////////////////////////////////////////////////////////////////////////////

#ifndef DEBUG_ONLY
#ifdef _DEBUG
#define DEBUG_ONLY(x)   x
#else
#define DEBUG_ONLY(x)
#endif
#endif

///////////////////////////////////////////////////////////////////////////////
// Functions defined in this file...
///////////////////////////////////////////////////////////////////////////////

inline bool BOOL_to_bool(const BOOL bResult)
{
   // Convert a make believe BOOL into a real bool.
   // Removes warning C4800...

   return (TRUE == bResult);
}

const LPTSTR GetLastErrorMessage(DWORD last_error);

///////////////////////////////////////////////////////////////////////////////
// Namespace: JetByteTools
///////////////////////////////////////////////////////////////////////////////

} // End of namespace JetByteTools 

#endif // __UTILS__

///////////////////////////////////////////////////////////////////////////////
// End of file
///////////////////////////////////////////////////////////////////////////////

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Software Developer (Senior) JetByte Limited
United Kingdom United Kingdom
Len has been programming for over 30 years, having first started with a Sinclair ZX-80. Now he runs his own consulting company, JetByte Limited and has a technical blog here.

JetByte provides contract programming and consultancy services. We can provide experience in COM, Corba, C++, Windows NT and UNIX. Our speciality is the design and implementation of systems but we are happy to work with you throughout the entire project life-cycle. We are happy to quote for fixed price work, or, if required, can work for an hourly rate.

We are based in London, England, but, thanks to the Internet, we can work 'virtually' anywhere...

Please note that many of the articles here may have updated code available on Len's blog and that the IOCP socket server framework is also available in a licensed, much improved and fully supported version, see here for details.

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