41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
/*
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* Copyright (c) 2001-2006
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* DecisionSoft Limited. All rights reserved.
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* Copyright (c) 2004-2006
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* Progress Software Corporation. All rights reserved.
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* Copyright (c) 2004-2006
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* Oracle. All rights reserved.
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*
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* See the file LICENSE for redistribution information.
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*
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* $Id: FunctionAvg.hpp,v 1.9 2007/02/07 12:13:00 jpcs Exp $
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*/
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/*
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* Avg function -- takes a sequence, returns a vlue of the same type as the items which is
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* the average of the values
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*/
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#ifndef _FUNCTIONAVG_HPP
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#define _FUNCTIONAVG_HPP
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#include <xqilla/ast/ConstantFoldingFunction.hpp>
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/** Avg operator function*/
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class XQILLA_API FunctionAvg : public ConstantFoldingFunction
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{
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public:
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static const XMLCh name[];
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static const unsigned int minArgs;
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static const unsigned int maxArgs;
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FunctionAvg(const VectorOfASTNodes &args, XPath2MemoryManager* memMgr);
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ASTNode* staticResolution(StaticContext *context);
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virtual ASTNode *staticTyping(StaticContext *context);
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/** Takes a list of nodes and averages their values */
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Sequence createSequence(DynamicContext* context, int flags=0) const;
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};
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#endif // _FUNCTIONAVG_HPP
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