std::experimental::filesystem::path::replace_extension

< cpp‎ | experimental‎ | fs‎ | path
path& replace_extension( const path& replacement = path() );
 (1) (filesystem TS)

Replaces the extension with replacement or removes it when the default value of replacement is used.

Firstly, if this path has an extension(), it is removed.

Then, a dot character is appended if replacement is not empty or does not begin with a dot character.

Then replacement is appended to the path.

Parameters

replacement - the extension to replace with

Return value

*this

Exceptions

May throw implementation-defined exceptions.

Example

#include <iostream>
#include <experimental/filesystem>
namespace fs = std::experimental::filesystem;
 
int main()
{
    fs::path p = "/foo/bar.jpeg";
    std::cout << "Was: " << p << '\n';
    p.replace_extension(".jpg");
    std::cout << "Now: " << p << '\n';
}

Output:

Was: "/foo/bar.jpeg"
Now: "/foo/bar.jpg"

See also

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