GNU CPP 4

				// function.hpp
				// Function Set Class definitions  --> defined in function.cpp
				
				//--------------------------------------------------------------------------
				// This code is a component of Genetic Programming in C++ (Version 0.40)
				// Copyright Adam P. Fraser, 1993,1994
				// This code is released for non-commercial use only.
				// For comments, improvements, additions (or even money !?) contact:
				// Adam Fraser, Postgraduate Section, Dept of Elec & Elec Eng,
				// Maxwell Building, University Of Salford, Salford, M5 4WT, United Kingdom.
				// Internet: a.fraser@eee.salford.ac.uk
				// Tel: (UK) 061 745 5000 x3633
				// Fax: (UK) 061 745 5999
				//--------------------------------------------------------------------------
				
				// A function set is made up of two classes FS ( the function set itself )
				// and Function for each block within the function set. Each class is defined
				// below....
				
				#ifndef __FUNCTION
				
				#define __FUNCTION
				
				#include 
				
				class Function
				{
				// variables for the function numerical value and the number of arguments it takes
					unsigned int uiFunction;                                        
					unsigned int uiArguments;
				
					friend class FS;               // FS needs to access private bits, honest!
				// Print functions for Function and Function set....................
					friend ostream& operator 				// simple functions which can return function and arguments to outside world
					friend unsigned int function( Function *pf );
					friend unsigned int arguments( Function *pf );
				
				public:
				// standard constructor
					Function();
				};
				
				class FS
				{
				// pointer to the first function in the function
					Function *pfHeader;
				// length of the function set............                
					unsigned int uiLength;
				
				// print function for FS
					friend ostream& operator 				
				public:
				
				// standard constructor (not used)
					FS();
				// enhanced constructor for FS function values then arguments
					FS( unsigned int noofargs, ... );
				// standard destructor          
					~FS();
				// returns the n'th value of the function set......
					Function *Nth( unsigned int n );
				// chooses a random member of the function set......
					Function *Choose();
				};
				
				// a naughty global variable which user must create to place function set into
				// because of adfs having individual function sets this is an array...........
				extern FS *FunctionSets[];
				
				// function to exit system nicely when error occurs...........................
				extern void ExitSystem( char* );
				#endif