Schleife.h
#ifndef __CPlusPlusTest__Schleife__
#define __CPlusPlusTest__Schleife__
#include <iostream>
class Schleife;
#endif /* defined(__CPlusPlusTest__Schleife__) */
施莱夫.cpp
#include "Schleife.h"
class Schleife
{
public:
int addition(int,int);
private:
int ergebnis;
};
int Schleife::addition(int a,int b)
{
ergebnis = a +b;
return ergebnis;
}
ViewController.h
#import <UIKit/UIKit.h>
#import "Schleife.h"
@interface ViewController : UIViewController
@end
ViewController.mm
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
Schleife *schleife = new Schleife();
// Do any additional setup after loading the view, typically from a nib.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
怎么了?
我收到错误消息:"ViewController.mm:22:31:分配不完整类型'Schleife'"
我不明白我做错了什么。我只想在我的应用程序中实现C++代码。所以我从一个简单的例子开始,但它不起作用......你可以帮我吗?我知道这可能是一个简单的问题,但我找不到错误......
Schleife.h 应该有这段代码而不是 cpp 文件
class Schleife
{
public:
int addition(int,int);
private:
int ergebnis;
};
您还需要在 ViewController.mm 中包含 #include"Schleife.h"