Macro assertables::assert_in_delta_as_result

source ·
macro_rules! assert_in_delta_as_result {
    ($a:expr, $b:expr, $delta:expr $(,)?) => { ... };
}
Expand description

Assert a number is within delta of another number.

Pseudocode:
| a - b | ≤ Δ

  • 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