C ++:在头文件中声明结构返回类型函数 [英] C++ : Declaring struct return-type function in header file

问题描述

我有一个头文件" check.h "，它定义了以下 struct :

I have a header file "check.h" that defines the following struct:

#ifndef CHECK_H
#define CHECK_H
#include<string>
struct Test{
    std::string check;

};

#endif  

我还有另一个头文件" test.h "，该文件具有以下功能，返回类型为上面定义的 struct Test :

I have another header file "test.h" that has the following function with return type as the struct Test defined above:

#ifndef TEST_H
#define TEST_H
#include<string>
#include "check.h"
Test display(std::string);
#endif  

但是，即使在此头文件中包含"check.h" ，我也会收到无法解析标识符的错误.我该怎么做才能解决此问题?

But even on including "check.h" in this header file I get an unable to resolve identifier error. What do I do to fix this?

推荐答案

只要没有定义名称为 Test .

如果有的话，则需要明确说明您是在指代类而不是其他东西:

If you have, then you need to make it clear that you're referring to the class and not the other thing:

struct Test display(std::string);
^^^^^^

尽管更好的解决方案是避免对不同的事物使用相同的名称.

although a much better solution would be to avoid using the same name for different things.

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