Macro runtime_fmt::rt_writeln

macro_rules! rt_writeln {
    ($dest:expr, $($rest:tt)*) => { ... };
}

Write runtime-formatted data into a buffer with a trailing newline.

Like writeln!, implementations of either std::fmt::Write or std::io::Write are accepted. Error variants of the appropriate type may be returned.

Returns a Result<(), Error>. See the module-level docs for more information.