c++ strings

I'm not sure about how allocation and cleanup works with c++ strings. Does this leak memory?


string get_filename(char * path)
{
    string file_name = path;
    int pos = file_name.find_last_of('\\');
    if (pos!=string::npos)
    {
        file_name = file_name.substr(pos+1); // what happens to the memory here?
    }
    return file_name;
}

Depends what "string" is. In this case, it has to be an object since you are calling the ".substr" function on it. If it is a class provided with your compiler, it is unlikely to leak memory; however, if it is your class, it is likely to leak memory. In any event, use smart pointers; they plug memory even for dummies.