assert_fn_err_lt_as_result

Macro assert_fn_err_lt_as_result 

Source
macro_rules! assert_fn_err_lt_as_result {
    ($a_function:path, $a_param:expr, $b_function:path, $b_param:expr $(,)?) => { ... };
    ($a_function:path, $b_function:path) => { ... };
}
Expand description

Assert a function error is less than another.

  • If true, return Result Ok(a).

  • Otherwise, return Result Err(message).

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

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