_global.h

该程序用ＶＣ实现了一个小型编译系统

/*
file name:_global.h
these variables and datate structers are for global use 
*/
#ifndef GLOBAL_H
#define GLOBAL_H
#include<fstream.h>
#define KeyWnum    9
const int maxvartablep=20;
ifstream infile("source.txt");
ofstream outfile("two_code_list.txt"),
fout("object_code.txt");
int sym, type,index=0, row=1;

char *key_words[ KeyWnum ]={"main","int","char","if","else","for","while","read","write"};
struct Error{
	int row_error;

	char p_Error[40];
}error[20];


struct Vartable{
    int type;
	int address;
	char name[10];
}varTable[maxvartablep];
 int vartablep=0,datep=0,labelp=0,
	 stack[4],s_top=0;        //  栈式符号表及栈顶指针
#endif