Should put these two functions in a separate CPP file?

[NewbieGuan]

Hello, there was a problem when I included the file "scl.h" directly in my project:"Find one or more multidefined symbols".
Then I put these two functions in a separate CPP file, and solved this problem:

#include "SCL.h"

namespace scl
{
    //functions to return iterators for a given config_file (range-based for loops)
    config_file::iterator begin(config_file &file)
    {
        return file.begin();
    }

    config_file::iterator end(config_file &file)
    {
        return file.end();
    }
}

So should the definitions of these two functions be separated for normal use?