已经在构造函数的char*前加const了，加了之后p2中的“school”不报错，但是p1中的“home”报错

Part1（point.h）

#pragma once

#define _CRT_SECURE_NO_WARNINGS
#include<bits/stdc++.h>
class point
{
private:
    double x;
    double y;
    char *name;
public:

    point(const char *n=NULL, double a=0.0 ,double b=0.0);
    ~point();
    void dis();
    //point(point& p);
};

Part2（class的源码）

#include<bits/stdc++.h>
#include<string.h>
#include"point.h"
using namespace std;

point::point(const char* n, double a, double b)
{
	x = a;
	y = b;
	if (n)
	{
		name = new char[strlen(n)+1];
		strcpy(name, n);
	}
	else 
	{
		name = new char[8];
		strcpy(name, "no name");
	}
	cout << name << "constructing" << endl;
}
point::~point()
{
	cout << name << "distructing" << endl;
	delete [] name;
}
void point::dis()
{
	cout << name << ":" << x << "," << y << endl;
}

Part 3(主程序)

#include <iostream>
#include<bits/stdc++.h>
#include "point.h"
using namespace std;

int main()
{
    point p1("home", 1.0, 2,0);
    point p2("school", 3.0);
    point p3;
//    point p4 = p1;
    p1.dis();
    p2.dis();
    p3.dis();
    return 0;
    }