Macro assertables::assert_in_epsilon_as_result

macro_rules! assert_in_epsilon_as_result {
    ($a:expr, $b:expr, $epsilon:expr $(,)?) => { ... };
}

Assert a number is within epsilon of another number.

Pseudocode:
| a - b | ≤ ε * min(a, b)

• If true, return Result Ok(()).

• When false, return Err with a message and the values of the expressions with their debug representations.

This macro provides the same statements as assert_, except this macro returns a Result, rather than doing a panic.

This macro is useful for runtime checks, such as checking parameters, or sanitizing inputs, or handling different results in different ways.

Module macros

• assert_in_epsilon
• assert_in_epsilon_as_result
• debug_assert_in_epsilon