Use manipulation functions with path

The filesystem library includes functions for manipulating the contents of path objects. In this recipe, we will consider a few of these tools.

How to do it…

In this recipe, we examine some functions that manipulate the contents of path objects:

• We start with the namespace directive and our formatter specialization. We do this in every recipe in this chapter:

  namespace fs = std::filesystem;
  template<>
  struct std::formatter<fs::path>: std::formatter<std::string> {
      template<typename FormatContext>
      auto format(const fs::path& p, FormatContext& ctx) {
          return format_to(ctx.out(), "{}", p.string());
      }
  };

• We can get the current working directory with the current_path() function, which returns a path object:

  cout << format("current_path: {}\n", fs::current_path...