Macros
Macro here!()
gives &str
with the file:line path::function-name
of where it was called from.
This string will be rendered in bold red on (linux) terminals, so as to easily find the
first real error in voluminous confusing traces of avalanching Rust errors.
Traits
Trait to serialize slices of generic items (vectors) and slices of Vecs of generic items (matrices). Turns them all into printable strings.