errout.cpp

能够实现词法分析,是我在学编译时做的,希望多提意见

#include <stdio.h>
#include <stdlib.h>
#include <iostream.h>
#include <string.h>
#include <ctype.h>
#include "b.h"

extern FILE *fp;
extern FILE *err;
extern int lineNnm;
extern char *SYM;
extern char *ID;
extern double NUM;

void errout(char t,char * str)
{
	switch (t)
	{
	case 'f':
		fprintf(err,"错误：没有相应的文件:%s",str);
		break;
	case 'c':
		cout<<"错误：第"<<lineNnm<<"行";
		cout<<str<<endl;
		fprintf(err,"错误：第%i行%s",lineNnm,str);
		break;
	}

}