www.pudn.com > 基于VC的神经网络开发程序包(源码).rar > File.h

#ifndef _FILE_H 
#define _FILE_H 
#include  
#include  
#include "defines.h" 
 
namespace annie 
{ 
/** The idea is that this class will be used to read in information from text files 
  * created by the "save" function in various annie classes. 
  * When a file is opened, we check that the first non-commented line contains 
  * "ANNIE_FILE " where  is the version number. This has been done 
  * to allow for future changes to file formats used by ANNIE. 
  * All save functions should save in the same format. Current version is 1.0. 
  * 
  * Comments in an ANNIE file are given by a '#'. The rest of the line following '#' 
  * is ignored. The member functions of this class return values ignoring any 
  * and all comments that may have appeared in between. 
  */ 
class File 
{ 
private: 
	std::string _filename; 
	std::ifstream _file; 
	bool _isOpen; 
	void _next(); 
public: 
	///Creates an empty File object 
	File(); 
 
	///Opens a given filename in the File object 
	/** @param filename The name of the file to be opened. 
	  * \throws Throws an Exception if the first line of the file is not ANNIE_FILE 
	  *			or the version of the ANNIE file is an incorrect one (not supported by 
	  *			this compilation of code) 
	  */ 
	File(std::string filename); 
 
	///Explicitly opens a given filename in the File object 
	/** @param filename The name of the file to be opened. 
	  * \throws Exception if the first line of the file is not ANNIE_FILE 
	  *			or the version of the ANNIE file is an incorrect one (not supported by 
	  *			this compilation of code) 
	  * \throws Exception if another file is already opened and hasn't been closed. 
	  */ 
	void open(std::string filename); 
	 
	///Reads one character from the file 
	char readChar(); 
 
	///Returns an integer read from the file 
	int readInt(); 
 
	///Returns a real read from the file 
	real readDouble(); 
 
	///Returns a "word" (a string with no word separators/delimiters) read from the file 
	std::string readWord(); 
 
	///Closes the file 
	void close(); 
 
	///Returns a complete line 
	std::string readLine(); 
 
	///checks if the file has reached the end 
	/** @return true if the file has reached the end, false otherwise*/ 
	bool eof(); 
}; 
 
}; //namespace annie 
#endif // define _FILE_H