有人能帮忙吗？
假设，我有以下C++文件：
#ifndef ROOM_H
#define ROOM_H
#include "Console.h"
...
class Room {
public:
void room();
};
#endif // ROOM_H
#include "Room.h"
void Room::room() {
Console::print();
}
#ifndef CONSOLE_H
#define CONSOLE_H
#include "Room.h"
#include "RoomChild.h"
class Console {
public:
static void print();
static void printRoom(Room& room);
static void printRoomChild(RoomChild& room);
};
#endif // CONSOLE_H
#include "Console.h"
void Console::print() {
;
}
void Console::printRoom(Room& room) {
// print member of room
}
void Console::printRoomChild(RoomChild& roomChild) {
// print member of roomChild
}
#ifndef ROOM_CHILD_H
#define ROOM_CHILD_H
#include "Room.h"
#include "Console.h"
class RoomChild : public Room {
public:
void roomChild();
};
#endif // ROOM_CHILD_H
#include "RoomChild.h"
void RoomChild::roomChild() {
Console::print();
}
我试着向每个类提出声明，或者只向其中的一些类提出声明。但是，它不工作，给我也...类型不完整，或在“{”token class roomchild：public Room{之前应为类名
包装物都被弄得乱七八糟的。
将多余的include指令从不相关的文件中删除。
在所依赖的文件上添加include指令。
房间H
#ifndef ROOM_H
#define ROOM_H
/* DELETE: because Room.h does not depend on it.
#include "Console.h"
*/
// ...
class Room {
public:
void room();
};
#endif // ROOM_H
room.cpp
#include "Room.h"
/* ADD: because Room.h does depend on it. */
#include "Console.h"
void Room::room() {
Console::print();
}
控制台h
#ifndef CONSOLE_H
#define CONSOLE_H
/* DELETE: because Room.h does not depend on them.
#include "Room.h"
#include "RoomChild.h"
*/
class Console {
public:
static void print();
};
#endif // CONSOLE_H
console.cpp
#include "Console.h"
void Console::print() {
;
}
室童。h
#ifndef ROOM_CHILD_H
#define ROOM_CHILD_H
#include "Room.h"
/* DELETE: because RoomChild.h does not depend on it
#include "Console.h"
*/
class RoomChild : public Room {
public:
void roomChild();
};
#endif // ROOM_CHILD_H
RoomChild.cpp
#include "RoomChild.h"
/* ADD: because RoomChild.h does depend on it. */
#include "Console.h"
void RoomChild::roomChild() {
Console::print();
}
