util::details::PointerVectorMaker < Coll, std::enable_if_t< util::is_unique_ptr_v< typename Coll::value_type > > > Struct Template Reference

#include <SortByPointers.h>

Static Public Member Functions
static auto	make (Coll &coll)

Detailed Description

template<typename Coll>
struct util::details::PointerVectorMaker < Coll, std::enable_if_t< util::is_unique_ptr_v< typename Coll::value_type > > >

Definition at line 154 of file SortByPointers.h.

Member Function Documentation

template<typename Coll >

static auto util::details::PointerVectorMaker < Coll, std::enable_if_t< util::is_unique_ptr_v< typename Coll::value_type > > >::make ( Coll &  coll )

inlinestatic

Definition at line 159 of file SortByPointers.h.

                                 {
      
      
      using coll_t = Coll;
      using unique_ptr_t = typename coll_t::value_type;
      using value_type = typename unique_ptr_t::element_type;
      using pointer_type = std::add_pointer_t<value_type>;
      using ptr_coll_t = std::vector<pointer_type>;
      
      static_assert(util::is_unique_ptr_v<unique_ptr_t>); // kind of silly now
      
      using std::size;
      auto const n = size(coll);

      //
      // create the collection of pointers to data
      //
      ptr_coll_t ptrs;
      ptrs.reserve(n);
      std::transform(coll.begin(), coll.end(), std::back_inserter(ptrs),
        [](auto& obj){ return obj.get(); });

      return ptrs;

    } // make()

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

• larcorealg/larcorealg/CoreUtils/SortByPointers.h