parent_path() with or without trailing slash

Question

As explained in the documentation, the expected output of the following is:

boost::filesystem::path filePath1 = \"/home/user/\";
cout << filePath1.pare         


        

Answer 1

Seems like it, although I would recommend doing a previous manipulation with the directory string instead of calling twice to parent_path():

std::string directory = "/home/user"; // Try with "/home/user/" too, result is the same

while ((directory.back() == '/') || (directory.back() == '\\')))
    directory.erase(directory.size()-1);    

boost::filesystem::path filePath(directory);
std::cout << filePath.parent_path() << std::endl; // outputs "/home" 

It is important to note that std::string::back() is a C++11 feature. Should you need to compile with a previous version you will have to change the algorithm a bit.