I have followed some instructions to construct Visual studio code C/C++ compile and debug environment.But g++ compiler can only compile the selected cpp file, so the included .h file associated the cpp file can not compiled. then the terminal shows 'Undefined symbols for architecture x86_64' error. the code as below:
the a.h file
int func();
the a.cpp file
include <iostream>
include "a.h"
using namespace std;
int func(){
return 111;
}
the main.cpp file
include "a.h"
using namespace std;
int main()
{
int b = func();
cout << b << endl;
}
Visual studio code will use the command as below
g++ directory/main.cpp -o directory/main.out -g -Wall -fcolor- diagnostics -std=c++11
this command will raise 'Undefined symbols for architecture x86_64' error I can fix it with this new command
g++ main.cpp a.cpp -o main.out.
So the problem is how to config these json files to fix the g++ compile issue. And when I want to use some libraries such as FFMpeg, how can I link the FFMpeg .h file correctly.
