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/*
* (c) Schrodinger, Inc.
*/
#pragma once
struct ObjectMolecule;
/**
* Proxy for ObjectMolecule::Neighbor entries of a given atom.
*/
class AtomNeighbors
{
const int* m_neighbor;
public:
struct value_type {
// Member layout must match ObjectMolecule::Neighbor.
// The data layout is described in ObjectMolecule::getNeighborArray.
int atm; ///< Atom index
int bond; ///< Bond index
};
AtomNeighbors(const ObjectMolecule* I, int atm);
/// Get the i'th neighbor
const value_type& operator[](size_t i) const { return *(begin() + i); }
/// Number of neighbors
unsigned size() const { return m_neighbor[0]; }
const value_type* begin() const
{
return reinterpret_cast<value_type const*>(m_neighbor + 1);
}
const value_type* end() const { return begin() + size(); }
};
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