macro_rules! assert_fn_ok_ge2_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 Ok(…) is greater than or equal to another.
Pseudocode:
(a_function(a_param) ⇒ Ok(a) ⇒ a) ≥ (b_function(b_param) ⇒ Ok(b) ⇒ b)
-
If true, return Result
Ok(a, b). -
Otherwise, return Result
Err(message).
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.