How to check whether the file path is a hard link and preserve it while copying to other directory in c++

Question

I am using below code to create hard link and identify whether the file is having hard link count of 2.

#include <filesystem>
#include <iostream>
namespace fs = std::filesystem;
 
int main()
{
    // On a POSIX-style filesystem, each directory has at least 2 hard links:
    // itself and the special member pathname "."
    fs::path p = fs::current_path();
    std::cout << "Number of hard links for current path is "
              << fs::hard_link_count(p) << '\n';
 
    // Each ".." is a hard link to the parent directory, so the total number
    // of hard links for any directory is 2 plus number of direct subdirectories
    p = fs::current_path() / ".."; // Each dot-dot is a hard link to parent
    std::cout << "Number of hard links for .. is "
              << fs::hard_link_count(p) << '\n';
}

This is what i have done below for symlink:

 else if (fs::is_symlink(srcFilePath)){
        std::cout<<srcFilePath;
        std::filesystem::path p(srcFilePath);
            cpSoftLink(srcFilePath, dstFilePath);

    }

void cpSoftLink(const fs::path & srcPath, const fs::path & dstpath){
// if symbolic link already exists then don't create it again
    if ( !fs::exists(dstpath) ) {
         fs::create_symlink(fs::read_symlink(srcPath),dstpath);
        }
}

But, i want to know the file to which hard link is pointing to again preserve it while copying it to new directory by calling create_hardlink.