source.h

来自「朴素贝叶斯c代码」· C头文件 代码 · 共 47 行

#ifndef SOURCE_H
#define SOURCE_H

#include <stdio.h>
#include <stdlib.h>
#include <malloc.h>
#include <iostream.h>
#include "util.h"

#define MAXLEN 4096
typedef float Description;

class Source {

private:
	FILE *handle;
	char *fname;
	char delimiter[1024];
	char *where, *buffer;
	int n_Instances;    // the number of rows
	int n_Descriptions; // the number of columns

public:
	Source(char delim[]=",", char *fname=NULL);
	
	void init(); // reset the file pointer to the beginning

	Description readDescription(); // read a description

	void setDelimiter(char *delim) { strcpy(delimiter, delim); }

	int numOfInstances() { return n_Instances; }
	int numOfDescriptions() { return n_Descriptions; }

	// status() will give a status after read a char from the
	// input
	Description *readOneInstance();
	char *getFileName() { return fname; }

private:
	int countInstances();
	int countDescriptions(); // class column also counted

};

#endif