From cppreference.com
pathrelative_path()const;(since C++17)Returns path relative to root-path, that is, a pathname composed of every generic-format component of *this after root-path. If *this is an empty path, returns an empty path.
Parameters
(none)
Return value
Path relative to the
.
Exceptions
May throw implementation-defined exceptions.
Example
Run this code
#include<filesystem>#include<iostream>namespacefs=std::filesystem;intmain(){fs::pathp=fs::current_path();std::cout<<"The current path "<<p<<" decomposes into:\n"<<"root-path "<<p.root_path()<<'\n'<<"relative path "<<p.relative_path()<<'\n';}Possible output:
The current path "C:\Users\abcdef\Local Settings\temp" decomposes into: root-path "C:\" relative path "Users\abcdef\Local Settings\temp" See also
returns the root-name of the path, if present
(public member function)
returns the root directory of the path, if present
(public member function)
returns the root path of the path, if present
(public member function)