#ifndef _HEAD_H
#define _HEAD_H
#include "ctype.h"
#include "stdio.h"
#include "stdlib.h"
#include "unistd.h"
#include "iostream"
#include "fstream"
#include "sstream"
#include "iomanip"
#include "vector"
#include "ctime"
#include "cmath"
#include "random"
#include "string.h"

#define BOLDRED "\033[1m\033[31m"
#define RESET "\033[0m"

using namespace std;

typedef vector<double> _1dArray;
typedef vector<int> _1iArray;

int open_infile(ifstream &infile,char* filename)
{
	infile.open(filename);
	if (!infile)
	{
		cout << BOLDRED << "error ==> " << RESET << "file not found: " << filename << endl;
		return -1;
	}
	return 0;
}

int open_outfile(ofstream &outfile,char* filename)
{
	outfile.open(filename);
	if (!outfile)
	{
		cout << BOLDRED << "error ==> " << RESET << "fail to create the file: " << filename << endl;
		return -1;
	}
	return 0;
}

string& replace_all(string& str,const string& old_value,const string& new_value,int &num) //替换str中所有lod_value为new_value,返回被替换的lod_value的个数
{
	int count = 0;
	for(string::size_type pos(0);pos!=string::npos;pos+=new_value.length())
	{
		if((pos=str.find(old_value,pos))!=string::npos)
		{
			str.replace(pos,old_value.length(),new_value);
			count++;
		}
		else break;
	}
	num = count;
	return str;
}

struct node
{
	_1dArray val;
};
typedef vector<node> nodeArray;
#endif