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#ifndef GEOMETRY_CALOGEOMETRY_EZArrayFL_H
#define GEOMETRY_CALOGEOMETRY_EZArrayFL_H 1
#include "Geometry/CaloGeometry/interface/EZMgrFL.h"
/** \class EZArrayFL<T>
stl-vector-LIKE Class designed to allow many small fixed-length
containers to have a common memory managed by a single higher-level object.
It has the usual common iterators (begin, end) and functions (size, capacity, etc)
but is NOT actually an STL-vector.
It practices 'on-demand', or 'lazy evaluation', only allocating
memory when requested.
*/
template <class T>
class EZArrayFL {
public:
typedef EZMgrFL<T> MgrType;
typedef typename MgrType::iterator iterator;
typedef typename MgrType::const_iterator const_iterator;
typedef typename MgrType::reference reference;
typedef typename MgrType::const_reference const_reference;
typedef typename MgrType::size_type size_type;
typedef typename MgrType::value_type value_type;
EZArrayFL() : m_begin(), m_mgr() {}
EZArrayFL(MgrType* mgr) : m_begin(), m_mgr(mgr) {}
EZArrayFL(MgrType* mgr, const_iterator start, const_iterator finis)
: m_begin(0 == finis - start ? iterator() : mgr->assign()), m_mgr(mgr) {
assert((finis - start) == m_mgr->subSize());
iterator i(begin());
for (const_iterator ic(start); ic != finis; ++ic) {
(*i) = (*ic);
}
}
void resize() { assign(); }
void assign(const T& t = T()) {
assert(iterator() == m_begin);
m_begin = m_mgr->assign(t);
}
const_iterator begin() const { return m_begin; }
const_iterator end() const { return m_begin + m_mgr->subSize(); }
reference operator[](const unsigned int i) {
if (iterator() == m_begin)
assign();
return *(m_begin + i);
}
const_reference operator[](const unsigned int i) const { return *(m_begin + i); }
bool uninitialized() const { return (iterator() == m_begin); }
bool empty() const { return (0 == size()); }
size_type size() const { return m_mgr->subSize(); }
size_type capacity() const { return size(); }
protected:
private:
//EZArrayFL( const EZArrayFL& ) ; //stop
//EZArrayFL& operator=( const EZArrayFL& ) ; //stop
iterator m_begin;
MgrType* m_mgr;
};
#endif
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