Method read_line

0d_files/rust/bufread_lines.rs:32–42

(
            &mut self,
            buffer: &'buf mut String,
        )

        }

        pub fn read_line<'buf>(
            &mut self,
            buffer: &'buf mut String,
        ) -> Option<io::Result<&'buf mut String>> {
            buffer.clear();

            self.reader
                .read_line(buffer)
                .map(|u| if u == 0 { None } else { Some(buffer) })
                .transpose()
        }
    }
}