VariableArrayVar.cxx

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//*-- Author :    Ole Hansen   15/2/2016
 
//
// VariableArrayVar
//
// A "global variable" referencing a variable size array of basic data.
//
 
#include "VariableArrayVar.h"
#include "THaVar.h"
#include <typeinfo>   // for typeid
#include <cassert>
 
using namespace std;
 
namespace Podd {
 
//_____________________________________________________________________________
VariableArrayVar::VariableArrayVar( THaVar* pvar, const void* addr,
                                    VarType type, const Int_t* count )
  : Variable(pvar,addr,type), fCount(count)
{
  // Constructor
 
  assert( fCount );
 
  if( !VerifyNonArrayName(GetName()) ) {
    fValueP = nullptr;
    return;
  }
}
 
//_____________________________________________________________________________
Int_t VariableArrayVar::GetLen() const
{
  // Get number of elements of the variable
 
  if( !fCount )
    return 0;
  return *fCount;
}
 
//_____________________________________________________________________________
Int_t VariableArrayVar::GetNdim() const
{
  // Number of dimensions
 
  return 1;
}
 
//_____________________________________________________________________________
const Int_t* VariableArrayVar::GetDim() const
{
  // Return array of dimensions of the array. Scalars always return a
  // pointer to 1 (as with array definition [1]).
 
  return fCount;
}
 
//_____________________________________________________________________________
Bool_t VariableArrayVar::HasSameSize( const Variable& rhs ) const
{
  // Compare the size counter of this variable to that of 'rhs'.
 
  if( typeid(*this) != typeid(rhs) )
    return false;
 
  const auto *const other = dynamic_cast<const VariableArrayVar*>(&rhs);
  assert( other );
  if( !other )
    return false;
 
  return fCount == other->fCount;
}
 
//_____________________________________________________________________________
Bool_t VariableArrayVar::HasSizeVar() const
{
  return true;
}
 
//_____________________________________________________________________________
Bool_t VariableArrayVar::IsContiguous() const
{
  // Data are contiguous in memory
 
  return !IsPointerArray();
}
 
//_____________________________________________________________________________
Bool_t VariableArrayVar::IsPointerArray() const
{
  // Data are an array of pointers to data
 
  return fType>=kDouble2P && fType <= kObject2P;
}
 
//_____________________________________________________________________________
Bool_t VariableArrayVar::IsVarArray() const
{
  // Variable is a variable-size array
 
  return true;
}
 
//_____________________________________________________________________________
 
}// namespace Podd