74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
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/*
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This file is part of SECONDO.
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Copyright (C) 2011, University in Hagen, Department of Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef RASTER2_INST_H
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#define RASTER2_INST_H
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#include "AlgebraTypes.h"
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#include "DateTime.h"
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#include "NList.h"
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#include "Operator.h"
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#include "../istype.h"
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namespace raster2
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{
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extern ValueMapping instFuns[];
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ListExpr instTypeMap(ListExpr args);
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int instSelectFun(ListExpr args);
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struct instInfo : OperatorInfo
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{
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instInfo()
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{
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name = "inst";
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signature = "isType -> " + datetime::DateTime::BasicType();
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syntax = "inst(_)";
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meaning = "Returns the instant value of a isType.";
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}
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};
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template <typename T, typename Helper>
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int instFun(Word* args, Word& result, int message, Word& local, Supplier s)
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{
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istype<T, Helper>* pistype = static_cast<istype<T, Helper>*>(args[0].addr);
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result = qp->ResultStorage(s);
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datetime::DateTime* pResult = static_cast<datetime::DateTime*>(result.addr);
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if((pistype != 0) && pistype->isDefined())
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{
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if(pResult != 0)
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{
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*pResult = pistype->inst();
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}
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} else {
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pResult->SetDefined(false);
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}
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return 0;
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}
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}
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#endif /* #ifndef RASTER2_INST_H */
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