C/C++笔记：函数返回指针和引用

typedef struct Role {
	char* Name;
	int   Hp;
	int   MaxHp;
	int   Mp;
	int   maxMp;
	int   lv;
}*PROLE,ROLE;

1. 返回结构体

• 性能折损很大

Role CreateMonster(const char* name, int hp, int mp) {
   Role re {name, hp, hp, mp, mp};
   return rt;
}

2. 返回指针

• 不能返回局部变量的指针

PROLE CreateMonster(const char* name, int hp, int mp) {
  // 不能返回局部变量的指针
  // Role re {name, hp, hp, mp, mp};
  // return rt;
  PROLE re = new Role {name, hp, hp, mp, mp};
  return rt;
}

3. 返回引用

Role& CreateMonster(const char* name, int hp, int mp) {
    PROLE re = new ROLE{ cstr(str),Hp,Hp,Mp,Mp,1 };
	return *re;
}

ROLE& role = CreatMonster("aoteman", 1500, 1500);