Re: [Boost-users] Boost::filesystem : possible addition

From: John Maddock (john_at_[hidden])
Date: 2005-01-05 05:47:57

> I've always wanted some functionality to determine the relative path 
> between two paths. Maybe something like this can be added to the 
> convinience.hpp or otherwise:
>
> fs::path relative_path_of(fs::path const &base, fs::path const &full)
> {
>    std::string fullStr = full.string();
>    std::string baseStr = base.string() + "/"; // add a slash so that it 
> returns the relative path
>
>    boost::erase_first(fullStr, baseStr);
>   return fs::path(fullStr);
> }
>

The bcp utility needed something similar, and I had to hack my own version 
like you did, of course it's probably not possible to write a truly portable 
version, but it sure would be useful all the same.

John.