ld：未找到架构 x86_64 的符号（在 VS 代码上运行 C++）[重复]

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什么是未定义的引用/未解决的外部符号错误，我该如何解决？ (37 个回答)

如何使用 Visual Studio 代码编译多 cpp 文件？ (4 个回答)

用于在 vscode 中运行多个 cpp 类的代码运行器配置1 个答案

4 小时前关闭。

我正在创建一个简单的 C++ 项目，用于 VS 代码（macOS 版本 12.1）中的点和圆之间的关系。 如果我在主脚本中声明和定义Point和Circle类，我的代码运行良好。 但是，当我分别在.cpp和.h中声明和定义类时，出现以下错误：

Undefined symbols for architecture x86_64:
  "Point::getX()", referenced from:
      isInCircle(Circle&, Point&) in tempCodeRunnerFile-058de6.o
  "Point::getY()", referenced from:
      isInCircle(Circle&, Point&) in tempCodeRunnerFile-058de6.o
  "Point::setX(int)", referenced from:
      _main in tempCodeRunnerFile-058de6.o
  "Point::setY(int)", referenced from:
      _main in tempCodeRunnerFile-058de6.o
  "Circle::getR()", referenced from:
      isInCircle(Circle&, Point&) in tempCodeRunnerFile-058de6.o
  "Circle::setR(int)", referenced from:
      _main in tempCodeRunnerFile-058de6.o
  "Circle::getCenter()", referenced from:
      isInCircle(Circle&, Point&) in tempCodeRunnerFile-058de6.o
  "Circle::setCenter(Point)", referenced from:
      _main in tempCodeRunnerFile-058de6.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

这是我的tasks.json文件：

{
    "version": "2.0.0",
    "tasks": [
        {
            "type": "cppbuild",
            "label": "C/C++: clang build active file",
            "command": "/usr/bin/clang",
            "args": [
                "-fdiagnostics-color=always",
                "-g",
                "${workspaceFolder}/*.cpp",
                "-o",
                "${fileDirname}/${fileBasenameNoExtension}"
            ],
            "options": {
                "cwd": "${fileDirname}"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": "build",
            "detail": "compiler: /usr/bin/clang"
        }
    ]
}

我之前没有自定义头文件的编译都很好。 但是我在我的代码中没有看到任何错误，所以我猜这是设置或系统问题。 感谢您的帮助！

---

这是我的Point.h文件：

#pragma once 
#include <iostream>
using namespace std;

class Point
{
private:
    int m_X, m_Y;
public:
    void setX(int x);
    int getX();
    void setY(int y);
    int getY();
};

这是Point.cpp文件：

#include "Point.h"
void Point::setX(int x){ m_X = x; } 
int Point::getX(){ return m_X; };
void Point::setY(int y){ m_Y = y; }
int Point::getY(){ return m_Y; };

这是Circle.h文件：

#pragma once
#include <iostream>
#include "Point.h"
using namespace std;

class Circle
{
private:
    int m_R;
    Point m_Center;   
public:
    void setR(int r);
    int getR();
    void setCenter(Point center); 
    Point getCenter(); 
};

这是Circle.cpp文件：

#include "Circle.h"
void Circle::setR(int r){ m_R = r; }
int Circle::getR(){ return m_R; };
void Circle::setCenter(Point center){ m_Center = center; }  
Point Circle::getCenter() { return m_Center; };   

这是我的主要 function：

#include "Point.h"
#include "Circle.h"
using namespace std;

void isInCircle(Circle &c, Point &p)
{
    int distance = 
    (c.getCenter().getX() - p.getX())*(c.getCenter().getX() - p.getX())
     + (c.getCenter().getY() - p.getY())*(c.getCenter().getY() - p.getY());
    int rDistance = c.getR() * c.getR();
    if (distance == rDistance) { cout<<"Point is on the circle."<<endl;}
    else if (distance > rDistance) { cout<<"Point is off the circle."<<endl;}
    else { cout<<"Point is in the circle."<<endl;}
}

int main(){
    Circle circle;
    circle.setR(10);
    Point center;
    center.setX(10);
    center.setY(0);
    circle.setCenter(center);

    Point myPoint;
    myPoint.setX(10);
    myPoint.setY(11);
    isInCircle(circle, myPoint);

    return 0;
}