TriggerObjectOverlay.hpp

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#ifndef TRGDATAFORMATS_INCLUDE_TRGDATAFORMATS_TRIGGEROBJECTOVERLAY_HPP_
#define TRGDATAFORMATS_INCLUDE_TRGDATAFORMATS_TRIGGEROBJECTOVERLAY_HPP_
 
#include "trgdataformats/TriggerActivityData.hpp"
#include "trgdataformats/TriggerCandidateData.hpp"
#include "trgdataformats/TriggerPrimitive.hpp"
 
#include <algorithm>
#include <span>
 
namespace dunedaq::trgdataformats {
 
template<class DataType, class InputType>
struct TriggerObjectOverlay
{
  using data_t = DataType;
  using input_t = InputType;
  data_t data;
  uint64_t n_inputs; // NOLINT(build/unsigned)
  #pragma GCC diagnostic push
  #pragma GCC diagnostic ignored "-Wpedantic"
  input_t inputs[]; // Non-standard flexible array member, but alternatives are worse
  #pragma GCC diagnostic pop
 
  void set_inputs(std::span<const input_t> in)
  {
    n_inputs = static_cast<uint64_t>(in.size());
    std::copy(in.begin(), in.end(), inputs);
  }
};
 
using TriggerActivity = TriggerObjectOverlay<TriggerActivityData, TriggerPrimitive>;
 
using TriggerCandidate = TriggerObjectOverlay<TriggerCandidateData, TriggerActivityData>;
 
} // namespace dunedaq::trgdataformats
 
#endif // TRGDATAFORMATS_INCLUDE_TRGDATAFORMATS_TRIGGEROBJECTOVERLAY_HPP_