function::reverse_path_walk - Linux

Overview

function::reverse_path_walk is a C++ function that performs a reverse path walk on a local file system. It recursively traverses the directory tree starting from the specified path, visiting each directory and file in reverse order.

Syntax

int reverse_path_walk(const fs::path& p, std::function<int(const fs::path&)> callback);

Options/Flags

None

Examples

// Visit all files and directories in reverse order
int main() {
  fs::path path("/tmp");
  auto status = reverse_path_walk(path, [](const fs::path& p) {
    if (fs::is_directory(p)) {
      std::cout << "Directory: " << p << std::endl;
    } else {
      std::cout << "File: " << p << std::endl;
    }
    return 0;
  });
  if (status != 0) {
    std::cerr << "Error walking path: " << status << std::endl;
  }
  return 0;
}

Common Issues

• Error code -1: The path provided is not a valid path.
• Error code -2: An I/O error occurred while traversing the path.

Integration

function::reverse_path_walk can be used in conjunction with other Boost.Filesystem functions for advanced file and directory manipulation tasks. For example, it can be used with directory_iterator to iterate over the files and directories in a path in reverse order.

Related Commands

• fs::recursive_directory_iterator: Performs a forward path walk on a directory tree, visiting all files and directories in depth-first order.
• fs::directory_iterator: Iterates over the files and directories in a directory.