How Can I Change the Current Working Directory in C Using std::filesystem?

Changing the Current Working Directory in C

Changing the current working directory in C can be a platform-specific task. While you can use the direct.h header file on Windows and unistd.h on UNIX/POSIX systems, there's a more versatile solution available.

Solution with C 17 and std::filesystem

With the introduction of C 17, the standard library includes the std::filesystem header, which provides a platform-agnostic way to manipulate file systems. Using this header, you can change the current working directory as follows:

<code class="cpp">#include <filesystem>
int main() {
    auto path = std::filesystem::current_path(); //getting path
    std::filesystem::current_path(path); //setting path
}</code>

This code will retrieve the current working directory (getting path) and then set it to the specified path. The std::filesystem::current_path() function automatically handles platform-specific operations, ensuring portability across different operating systems.

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