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#ifndef DataFormats_Common_FillView_h
#define DataFormats_Common_FillView_h
/*----------------------------------------------------------------------
Several fillView function templates, to provide View support for
Standard Library containers.
----------------------------------------------------------------------*/
#include <vector>
#include <list>
#include <deque>
#include <set>
#include "DataFormats/Common/interface/GetProduct.h"
#include "DataFormats/Common/interface/FillViewHelperVector.h"
namespace edm {
class ProductID;
namespace detail {
template <class COLLECTION>
void reallyFillView(COLLECTION const& coll,
ProductID const& id,
std::vector<void const*>& ptrs,
FillViewHelperVector& helpers) {
typedef COLLECTION product_type;
typedef typename GetProduct<product_type>::element_type element_type;
typedef typename product_type::const_iterator iter;
typedef typename product_type::size_type size_type;
ptrs.reserve(ptrs.size() + coll.size());
helpers.reserve(ptrs.size() + coll.size());
size_type key = 0;
for (iter i = coll.begin(), e = coll.end(); i != e; ++i, ++key) {
element_type const* address = GetProduct<product_type>::address(i);
ptrs.push_back(address);
helpers.emplace_back(id, key);
}
}
} // namespace detail
template <class T, class A>
void fillView(std::vector<T, A> const& obj,
ProductID const& id,
std::vector<void const*>& ptrs,
FillViewHelperVector& helpers) {
detail::reallyFillView(obj, id, ptrs, helpers);
}
template <class T, class A>
void fillView(std::list<T, A> const& obj,
ProductID const& id,
std::vector<void const*>& ptrs,
FillViewHelperVector& helpers) {
detail::reallyFillView(obj, id, ptrs, helpers);
}
template <class T, class A>
void fillView(std::deque<T, A> const& obj,
ProductID const& id,
std::vector<void const*>& ptrs,
FillViewHelperVector& helpers) {
detail::reallyFillView(obj, id, ptrs, helpers);
}
template <class T, class A, class Comp>
void fillView(std::set<T, A, Comp> const& obj,
ProductID const& id,
std::vector<void const*>& ptrs,
FillViewHelperVector& helpers) {
detail::reallyFillView(obj, id, ptrs, helpers);
}
} // namespace edm
#endif
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