ColumnarDef.h

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/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef COLUMNAR_CORE_COLUMNAR_DEF_H
#define COLUMNAR_CORE_COLUMNAR_DEF_H
 
namespace columnar
{
  // This checks that COLUMNAR_DEFAULT_ACCESS_MODE is indeed defined, plus makes it
  // available for use with `if constexpr`.
  constexpr unsigned columnarAccessMode = COLUMNAR_DEFAULT_ACCESS_MODE;
 
  struct ColumnarModeXAOD
  {
    static constexpr bool isXAOD = true;
 
    static constexpr bool inPlaceReplace = true;
  };
 
 
 
  struct ColumnarModeArray
  {
    static constexpr bool isXAOD = true;
 
    static constexpr bool inPlaceReplace = false;
  };
 
 
 
#if COLUMNAR_DEFAULT_ACCESS_MODE == 0
  using ColumnarModeDefault = ColumnarModeXAOD;
#elif COLUMNAR_DEFAULT_ACCESS_MODE == 2
  using ColumnarModeDefault = ColumnarModeArray;
#else
  #error "COLUMNAR_DEFAULT_ACCESS_MODE must be 0 or 2"
#endif
}
 
#endif