BoolCache.h

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#ifndef canvas_Persistency_Common_BoolCache_h
#define canvas_Persistency_Common_BoolCache_h
// -*- C++ -*-
//
// Package:     Common
// Class  :     BoolCache
//
/**\class BoolCache BoolCache.h DataFormats/Common/interface/BoolCache.h

 Description: ROOT safe cache flag

 Usage:
    We define an external TStreamer for this class in order to guarantee that
 isCached_ is always reset to false when ever a new instance of this class is
 read from a file

*/
//
// Original Author:  Chris Jones
//         Created:  Sat Aug 18 17:30:08 EDT 2007
//
//

// system include files

// user include files

// forward declarations
namespace art {
  class BoolCache {
  public:
    BoolCache() : isCached_(false) {}
    BoolCache(bool iValue) : isCached_(iValue) {}
    operator bool() { return isCached_; }
    // Cannot ref-qualify assignment operator because of GCC_XML.
    BoolCache&
    operator=(bool b)
    {
      isCached_ = b;
      return *this;
    }

  private:
    bool isCached_;
  };
}
#endif /* canvas_Persistency_Common_BoolCache_h */

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