std::filesystem::path::remove_filename - cppreference.com

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# std::filesystem::path::remove_filename

From cppreference.com
< cpp‎ | filesystem‎ | path

path& remove_filename() | (1) | (since C++17)

Removes a single filename component.

The behavior is undefined if the path has no filename component (`has_filename` returns false).

### [edit] Parameters

(none)

### [edit] Return value

*this

### [edit] Exceptions

(none)

### [edit] Example

Run this code

    #include <iostream>
    #include <filesystem>
    namespace fs = std::filesystem;

    int main()
    {

        std::cout << fs::path("/foo").remove_filename() << '\n'
                  << fs::path("/").remove_filename() << '\n';
    }

Output:

    "/"
    ""

### [edit] See also

filename | returns the filename path component (public member function) [edit]
replace_filename | replaces the last path component with another path (public member function) [edit]
has_filename | checks if the corresponding path element is not empty (public member function of `Template:cpp/filesystempath/title`)

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