在类 12.exe 中0x7B37FF80 (ucrtbased.dll） 引发异常: 0xC0000005:访问冲突读

我对 c++ 相当陌生。我正在使用Visual Studio IDE。我正在学习如何将对象发送到文件以及如何检索它们。在检索时，我在那个地方得到了一个异常。我不知道该怎么办

#include <iostream>
#include <fstream>
class Entity 
{
public:
int ID;
const char* name;
Entity(): ID(-1), name("NOT ASSIGNED") {}
Entity(int a, const char* b) : ID(a), name(b) {}
};
std::ostream& operator<<(std::ostream& stream, Entity &e) 
{
stream << e.ID << " " << e.name << std::endl; //exception is thrown here
return stream;
}
void WriteToFile(Entity e)
{
std::cout << "Writing to filen";
std::ofstream fout("ENTITY.txt", std::ios::app|std::ios::binary);
fout.write((char*)&e, sizeof(e));
fout.close();
}
void ReadFromFile()
{
std::ifstream fin("ENTITY.txt", std::ios::binary | std::ios::in);
while (!fin.eof())
{
Entity a;
fin.read((char*)&a, sizeof(a));
std::cout << a;
}
}
int main()
{
Entity a(1, "A");
Entity b(15, "C");
Entity x;
WriteToFile(a);
WriteToFile(b);
WriteToFile(x);
ReadFromFile();
}