Utilities/interface/ProductResolverIndex.h

0001 #ifndef FWCore_Utilities_ProductResolverIndex_h
0002 #define FWCore_Utilities_ProductResolverIndex_h
0003
0004 #include <limits>
0005
0006 namespace edm {
0007
0008   typedef unsigned int ProductResolverIndex;
0009
0010   enum ProductResolverIndexValues {
0011
0012     // All values of the ProductResolverIndex in this enumeration should
0013     // have this bit set to 1,
0014     ProductResolverIndexValuesBit = 1U << 30,
0015
0016     ProductResolverIndexInvalid = std::numeric_limits<unsigned int>::max(),
0017     ProductResolverIndexInitializing = std::numeric_limits<unsigned int>::max() - 1,
0018     ProductResolverIndexAmbiguous = std::numeric_limits<unsigned int>::max() - 2
0019   };
0020 }  // namespace edm
0021 #endif