Use Manipulation Functions with Path
Learn to 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 ourformatter
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 apath
object:
cout << format("current_path: {}\n", fs::current_path());
Output:
current_path: /usr/include
The ...
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