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secondo/Algebras/Tile/operators/map2.h
2026-01-23 17:03:45 +08:00

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3.8 KiB
C++

/*
This file is part of SECONDO.
Copyright (C) 2013, University in Hagen, Department of Computer Science,
Database Systems for New Applications.
SECONDO 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.
SECONDO 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 SECONDO; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef TILEALGEBRA_MAP2_H
#define TILEALGEBRA_MAP2_H
/*
SECONDO includes
*/
#include "AlgebraTypes.h"
#include "Operator.h"
#include "QueryProcessor.h"
/*
TileAlgebra includes
*/
#include "../Constants.h"
#include "../Types/Types.h"
/*
declaration of namespace TileAlgebra
*/
namespace TileAlgebra
{
/*
Struct map2Info describes name, syntax, meaning and signature
of TileAlgebra operator map2.
author: Dirk Zacher
*/
struct map2Info : OperatorInfo
{
map2Info()
{
name = "map2";
syntax = "_ _ map2[_]";
meaning = "Combines two tile types to a new tile type.";
std::vector<std::string> typeParameterTUV;
typeParameterTUV.push_back("T");
typeParameterTUV.push_back("U");
typeParameterTUV.push_back("V");
std::vector<std::string> valueWrapperTypes;
GetValueWrapperTypes(valueWrapperTypes);
signature = std::string(TYPE_NAME_PREFIX_T) + "T" + " x " +
TYPE_NAME_PREFIX_T + "U" + " x " +
"(T x U" + RIGHT_ARROW + "V)" +
RIGHT_ARROW + TYPE_NAME_PREFIX_T + "V" +
FOR + GetTypeParametersDomain(typeParameterTUV,
valueWrapperTypes);
appendSignature(std::string(TYPE_NAME_PREFIX_T) + "T" + " x " +
TYPE_NAME_PREFIX_MT + "U" + " x " +
"(T x U" + RIGHT_ARROW + "V)" +
RIGHT_ARROW + TYPE_NAME_PREFIX_MT + "V" +
FOR + GetTypeParametersDomain(typeParameterTUV,
valueWrapperTypes));
appendSignature(std::string(TYPE_NAME_PREFIX_MT) + "T" + " x " +
TYPE_NAME_PREFIX_T + "U" + " x " +
"(T x U" + RIGHT_ARROW + "V)" +
RIGHT_ARROW + TYPE_NAME_PREFIX_MT + "V" +
FOR + GetTypeParametersDomain(typeParameterTUV,
valueWrapperTypes));
appendSignature(std::string(TYPE_NAME_PREFIX_MT) + "T" + " x " +
TYPE_NAME_PREFIX_MT + "U" + " x " +
"(T x U" + RIGHT_ARROW + "V)" +
RIGHT_ARROW + TYPE_NAME_PREFIX_MT + "V" +
FOR + GetTypeParametersDomain(typeParameterTUV,
valueWrapperTypes));
}
};
/*
declaration of map2Functions array.
*/
extern ValueMapping map2Functions[];
/*
Method map2SelectFunction returns the index of specific map2 function
in map2Functions array depending on the arguments.
author: Dirk Zacher
parameters: arguments - arguments of map2 operator
return value: index of specific map2 function in map2Functions
exceptions: -
*/
int map2SelectFunction(ListExpr arguments);
/*
Method map2TypeMappingFunction returns the return value type
of map2 operator in the form of a ListExpr.
author: Dirk Zacher
parameters: arguments - arguments of map2 operator
return value: return value type of map2 operator
exceptions: -
*/
ListExpr map2TypeMappingFunction(ListExpr arguments);
}
#endif // TILEALGEBRA_MAP2_H