Macro a_false 

macro_rules! a_false {
    () => { ... };
    (
      $( $Rest : tt )*
    ) => { ... };
}

Asserts that a boolean expression is false at runtime.

This will invoke the panic! macro if the provided expression cannot be evaluated to false at runtime.

Basic use-case.

use diagnostics_tools::prelude::*;
a_true!( 1 == 2, "something wrong" );