Visual Studio Code 中的 C++ 库

Question

I have made a c++ project in CodeBlocks. Now I started using Visual Studio Code and I can't figure out how to connect files. I have main.cpp with my main code, then I have sortlib.cpp with some sorting functions and I have sortlib.h . My question is how do I connect these files, so I can #include "sortlib.h" in my main.cpp file and use the functions. I have tried including sortlib.h in my sortlib.cpp program and then my sortlib.h in my main.cpp program, but it didn't work.

I'm on windows so I just compiled my sortlib.cpp program by typing g++ sortlib.cpp and it showed me this error message c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: c:/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../libmingw32.a(main.o):(.text.startup+0xc0): undefined reference to 'WinMain@16'

Answer 1

Minimal code structure

main.cpp

// Other header files
#include "sortlib.h"

int main(void) {
  ...
}

sortlib.h

void someFunction();
...

sortlib.cpp

// Include headers that are required

void someFunction() {
  ...
}

The minimal required command

g++ -g main.cpp sortlib.cpp

Answer 2

There is no such thing as "connecting" files in programming. You have to make sure that your compiler is compiling all the.cpp files into.o/.obj files and that they are all getting linked together to produce your final executable.