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std::filesystem::path:: replace_filename

From cppreference.net
path & replace_filename ( const path & replacement ) ;
(since C++17)

Replaces a single filename component with replacement .

Equivalent to: remove_filename ( ) ; return operator / = ( replacement ) ; .

Contents

Parameters

replacement - path used for replacing the filename component

Return value

* this

Exceptions

May throw implementation-defined exceptions.

Example

#include <filesystem>
#include <iostream>
namespace fs = std::filesystem;
int main()
{
    std::cout << fs::path("/foo").replace_filename("bar") << '\n'
              << fs::path("/").replace_filename("bar") << '\n'
              << fs::path("").replace_filename("pub") << '\n';
}

Output:

"/bar"
"/bar"
"pub"

See also

replaces the extension
(public member function)
returns the filename path component
(public member function)
removes filename path component
(public member function)
checks if the corresponding path element is not empty
(public member function)