art::detail::TwoArgInsert< cet::map_vector< T > > Struct Template Reference

#include "CollectionUtilities.h"

Public Types
using	mv_t = cet::map_vector< T >

Static Public Member Functions
static void	concatenate (mv_t &out, mv_t in)

Detailed Description

template<typename T>
struct art::detail::TwoArgInsert< cet::map_vector< T > >

Definition at line 194 of file CollectionUtilities.h.

Member Typedef Documentation

template<typename T >

using art::detail::TwoArgInsert< cet::map_vector< T > >::mv_t = cet::map_vector<T>

Definition at line 195 of file CollectionUtilities.h.

Member Function Documentation

template<typename T >

static void art::detail::TwoArgInsert< cet::map_vector< T > >::concatenate ( mv_t &  out, mv_t  in  )

inlinestatic

Definition at line 197 of file CollectionUtilities.h.

References d, and art::detail::mix_offset< C >::offset().

    {
      // The offset is necessary for concatenating map_vectors so
      // that all elements will be preserved.
      auto const d = detail::mix_offset<mv_t>::offset(out);
      for (auto& pr : in) {
        pr.first = cet::map_vector_key{pr.first.asInt() + d};
      }
      // Because we can guarantee that entries will not overlap due
      // to using the offset above, we do not need to call
      // out.insert(...), which will unnecessarily merge entries.
      // It is the user's responsibility to ensure that the
      // map_vector entries are properly sorted.
      out.append(in.begin(), in.end());
    }

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The documentation for this struct was generated from the following file:

• art/Persistency/Common/CollectionUtilities.h