[英]C++ Undefined Reference When Compiling .h and .cpp in Subfolders
Long story short I want to put my.h and.cpp files in subfolders (include and src respectively) and reference them in my main.cpp file but I am receiving an error of:长话短说,我想将 my.h 和 .cpp 文件放在子文件夹中(分别是 include 和 src)并在我的 main.cpp 文件中引用它们,但我收到以下错误:
main.cpp:(.text+0x47): undefined reference to `Kmer::Kmer()'.
when compiling using:编译时使用:
g++ -I /path/to/MyFolder/include main.cpp
. g++ -I /path/to/MyFolder/include main.cpp
。
My files are structured like below:我的文件结构如下:
//main.cpp
#include <iostream>
#include "Kmer.h"
using namespace std;
int main() {
Kmer k;
return 0;
};
//Kmer.h
#pragma once
class Kmer{
public:
Kmer();
protected:
private:
};
//Kmer.cpp
#include "Kmer.h"
#include <iostream>
using namespace std;
Kmer::Kmer(){
// code here
cout << "Kmer created" << endl;
}
I appreciate the help!感谢您的帮助!
You are not compiling Khmer.cpp.您没有编译 Khmer.cpp。 You need to add it to your g++ compile line您需要将其添加到您的 g++ 编译行
g++ -o <YOUR APPLICATION NAME> -I /path/to/MyFolder/include main.cpp src/Khmer.cpp
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