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secondo/Algebras/Raster2/Operators/inst.cpp
2026-01-23 17:03:45 +08:00

86 lines
2.1 KiB
C++

/*
This file is part of SECONDO.
Copyright (C) 2011, 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
*/
#include "inst.h"
#include "../isint.h"
#include "../isreal.h"
#include "../isbool.h"
#include "../isstring.h"
namespace raster2
{
ValueMapping instFuns[] =
{
instFun<int, istype_helper<int> >,
instFun<double, istype_helper<double> >,
instFun<char, istype_helper<char> >,
instFun<std::string, istype_helper<std::string> >,
0
};
int instSelectFun(ListExpr args)
{
int nSelection = -1;
NList type(args);
if(type.first().isSymbol(isint::BasicType()))
{
nSelection = 0;
}
else if(type.first().isSymbol(isreal::BasicType()))
{
nSelection = 1;
}
else if(type.first().isSymbol(isbool::BasicType()))
{
nSelection = 2;
}
else if(type.first().isSymbol(isstring::BasicType()))
{
nSelection = 3;
}
return nSelection;
}
ListExpr instTypeMap(ListExpr args)
{
ListExpr instTypeMapListExpr = NList::typeError("Expecting a isType.");
NList types(args);
if(types.first() == NList(isint::BasicType()) ||
types.first() == NList(isreal::BasicType()) ||
types.first() == NList(isbool::BasicType()) ||
types.first() == NList(isstring::BasicType()))
{
instTypeMapListExpr = NList(datetime::DateTime::BasicType()).listExpr();
}
return instTypeMapListExpr;
}
}