<commit_before>// -*- Mode: C++; tab-width: 2; -*-
// vi: set ts=2:
//
// $Id: parsedFunction.h,v 1.8 2003/08/26 08:04:21 oliver Exp $
//

#ifndef BALL_MATHS_PARSEDFUNCTION_H
#define BALL_MATHS_PARSEDFUNCTION_H

#ifndef BALL_DATATYPE_HASHMAP_H
# include <BALL/DATATYPE/hashMap.h>
#endif

#include <numeric>

using std::unary_function;

namespace BALL
{
    /**  \addtogroup  FunctionClasses
     *  @{
     */  
	extern HashMap<String, double*> *parsedFunctionConstants;
	extern HashMap<String, double (*)(double)> *parsedFunctionFunctions;
	
	/** ParsedFunction.
	 		This function type contains a double - valued function string like
			\f$var1=atan(.5); sin(cos(atan(asin(exp(X+var1)))))\f$.
			When the operator () is called, \f$X\f$ is replaced with
			the argument of the operator call and the function string
			is parsed and evaluated.
	*/
	template <typename arg> 
	class ParsedFunction 
		: public unary_function<arg, double> 
	{
		public:
			
		/** @name Constructors and Destructors
		 */
		//@{

		/// Default constructor
		ParsedFunction()
			throw();

		/// Detailed constructor.
		ParsedFunction(String expression)
			throw();
		
		/// Copy constructor
		ParsedFunction(const ParsedFunction& func)
			throw();
		
		/// Destructor
		~ParsedFunction()
			throw();
		
		//@}
		
		/** @name Accessors
		 */
		//@{
		/** Evaluate the function at point \f$p\f$.
		 */
		double operator () (arg p)
			throw(Exception::ParseError);
	
		//@}
		/** @name Parsing
		 */
		//@{
		/** This function initializes the function table and the constant table<commit_msg>*** empty log message ***<commit_after>// -*- Mode: C++; tab-width: 2; -*-
// vi: set ts=2:
//
// $Id: parsedFunction.h,v 1.9 2003/12/19 14:54:08 anne Exp $
//

#ifndef BALL_MATHS_PARSEDFUNCTION_H
#define BALL_MATHS_PARSEDFUNCTION_H

#ifndef BALL_DATATYPE_HASHMAP_H
# include <BALL/DATATYPE/hashMap.h>
#endif

#include <numeric>

using std::unary_function;

namespace BALL
{
    /**  \addtogroup  FunctionClasses
     *  @{
     */  
	extern HashMap<String, double*> *parsedFunctionConstants;
	extern HashMap<String, double (*)(double)> *parsedFunctionFunctions;
	
	/** ParsedFunction.
	 		This function type contains a double - valued function string like
			\f$var1=atan(.5); sin(cos(atan(asin(exp(X+var1)))))\f$.
			When the operator () is called, \f$X\f$ is replaced with
			the argument of the operator call and the function string
			is parsed and evaluated.
	*/
	template <typename arg> 
	class ParsedFunction 
		: public unary_function<arg, double> 
	{
		public:
			
		/** @name Constructors and Destructors
		 */
		//@{

		/// Default constructor
		ParsedFunction()
			throw();

		/// Detailed constructor.
		ParsedFunction(const String& expression)
			throw();
		
		/// Copy constructor
		ParsedFunction(const ParsedFunction& func)
			throw();
		
		/// Destructor
		~ParsedFunction()
			throw();
		
		//@}
		
		/** @name Accessors
		 */
		//@{
		/** Evaluate the function at point \f$p\f$.
		 */
		double operator () (arg p)
			throw(Exception::ParseError);
	
		//@}
		/** @name Parsing
		 */
		//@{
		/** This function initializes the function table and the constant table
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