nrlnet.hpp

BP神经网络C语言程序包

//Header:	NrlNet.hpp
//Language:	Borland C++ 3.1
//Version:	1.0
//Environ:	Any
//Author:	LiuKang
//Date:		3/1996
//Purpose:	Provide a base class for neural network
 
#ifndef		__NRLNET__HPP
#define		__NRLNET__HPP

#include "matrix.hpp"
#include "nrlnode.hpp"
#include "dblarr.hpp"

enum NtErrType {  NT_NOERR	=0,	//no error mode
		  NT_MEM	=1,			//memery allocation failure
		  NT_FILEERR	=2,		//file operation failure
		  NT_INITERR	=4,		//network initialization failure
		  NT_FAIL	=8  };		//network run failure

typedef int LoadType;
#define OLD		0
#define INITIAL		1

static char *ErrMsg[]={ "",
			"\nClass NrlNet: memory allocation failure!",
			"\nClass NrlNet: file operation error!",
			"\nClass NrlNet: network initialization error!" };

class NrlNet
{
  protected:
    NrlNode *Node;			//array of net's nodes
    int NodeNum;			//node number of all network
    char NetType[30];		//network type
    Matrix *Weight;	      	//matrix pointer of network's weight
    Matrix *Conect;			//matrix pointer of network's connecting
	int DataWitch;			//weight and threshold data witch
	int DataPrec;			//weight and threshold data precision
    LoadType LdType;		//flag of load type
    char NtName[10];		//name of the network
    int ErrStatus;			//error status of network
    void WtFlLoad();		//function of weight load from file
    void WtFlWrite();		//function of weight write to file
    void ThdFlLoad();		//function of threshold load form file
    void ThdFlWrite();		//function of threshold write to file
    void WtInitial();		//function of weight initial method
    void ThdInitial();		//function of threshold initial method
    void (*ErrHandler)(NtErrType);//function pointer of error handler
    void Init(int);			//initial of network
  public:
    //constructors
    NrlNet(void);
    NrlNet(int n,char *nn=NULL);
    //destructor
    ~NrlNet(void);
    //other methods
    const char* IsA(){ return NetType; };
    void SetLdType(LoadType lt) { LdType=lt; };
    void SetNtName(char *nn);
    void SetNdFun(double (*)(double));		//set all node function
    void SetErrHandler(void (*uh)(NtErrType)) { ErrHandler=uh; };
											//set user's error handler
	void SetW(int w){ DataWitch=w;};		//set data witch
	void SetP(int p){ DataPrec=p;};			//set data precision
    void ErrSet(NtErrType);					//error handle function
    void ErrClear(){ ErrStatus=NT_NOERR; };	//clear error flag
    int GetErr(){ return ErrStatus; };		//get error status
    int GetNodeNum(){ return NodeNum; };	//get node number of network
};
void DefaultErr(NtErrType);

#endif