Macro unchecked_div_by_const 

macro_rules! unchecked_div_by_const {
    ($num:expr, $den:expr) => { ... };
}

Convenience macro for doing integer division where the opersation’s safety can be checked at compile-time

Since unchecked_div_by_const!() is supposed to fail at compile-time, abuse doctests to cover failure modes Literal denominator div-by-zero fails

Const denominator div-by-zero fails

Non-const denominator fails

Literal denominator div-by-zero fails

Const denominator div-by-zero fails

Non-const denominator fails

Literal denominator div-by-zero fails

Const denominator div-by-zero fails

Non-const denominator fails