/usr/include/madness/world/uniqueid.h is in libmadness-dev 0.10.1~gite4aa500e-10.
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This file is part of MADNESS.
Copyright (C) 2007,2010 Oak Ridge National Laboratory
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
For more information please contact:
Robert J. Harrison
Oak Ridge National Laboratory
One Bethel Valley Road
P.O. Box 2008, MS-6367
email: harrisonrj@ornl.gov
tel: 865-241-3937
fax: 865-572-0680
*/
/**
\file uniqueid.h
\brief \todo Brief description needed.
\ingroup world
*/
#ifndef MADNESS_WORLD_UNIQUEID_H__INCLUDED
#define MADNESS_WORLD_UNIQUEID_H__INCLUDED
#include <cstddef>
#include <iostream>
#include <madness/world/worldhash.h>
namespace madness {
class World;
/// \addtogroup world
/// @{
/// Class for unique global IDs.
class uniqueidT {
friend class World;
private:
unsigned long worldid; ///< ID of the \c World the object belongs to.
unsigned long objid; ///< ID of the object.
/// Constructor that sets the world and object IDs.
/// \param[in] worldid The ID of the \c World the object belongs to.
/// \param[in] objid The ID of the object.
uniqueidT(unsigned long worldid, unsigned long objid)
: worldid(worldid), objid(objid) {};
public:
/// Constructor.
uniqueidT()
: worldid(0), objid(0) {};
/// Equality comparison operator
/// \param[in] other The \c uniqueidT to compare against.
/// \return True if both `uniqueidT`s are the same.
bool operator==(const uniqueidT& other) const {
return objid==other.objid && worldid==other.worldid;
}
/// \todo Brief description needed.
/// \todo Return description needed (probably obvious from the brief description).
/// \return Description needed.
operator bool() const {
return objid!=0;
}
/// Serialize a unique ID object.
/// \tparam Archive The archive type.
/// \param[in,out] ar The archive.
template <typename Archive>
void serialize(Archive& ar) {
ar & worldid & objid;
}
/// Access the \c World ID.
/// \return The \c World ID.
unsigned long get_world_id() const {
return worldid;
}
/// Access the object ID.
/// \return The object ID.
unsigned long get_obj_id() const {
return objid;
}
/// Stream insertion function for a \c uniqueidT.
/// \param[in,out] s The output stream.
/// \param[in] id The \c uniqueidT to be output.
/// \return The output stream (for chaining).
friend std::ostream& operator<<(std::ostream& s, const uniqueidT& id) {
s << "{" << id.get_world_id() << "," << id.get_obj_id() << "}";
return s;
}
}; // class uniqueidT
/// Hash a \c uniqueidT.
/// \param[in] id The \c uniqueidT.
/// \return The hash.
inline hashT hash_value(const uniqueidT& id) {
hashT seed = hash_value(id.get_world_id());
detail::combine_hash(seed, hash_value(id.get_obj_id()));
return seed;
}
/// @}
} // namespace madness
#endif // MADNESS_WORLD_UNIQUEID_H__INCLUDED
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