An expression like min ⇐ x
may misleadingly imply that it is possible for x
to be less than the minimum. Expressions like
max < x
are likely mistakes, as they can never be true. These comparisons involving minimum or maximum values for their type with
integer and boolean types are often unintentional and can lead to confusion and potentially incorrect program logic.
Noncompliant code example
let vec: Vec<isize> = Vec::new();
if vec.len() <= 0 {} // Noncompliant: 0 is the minimum value for usize, this is always true.
if 100 > i32::MAX {} // Noncompliant: i32::MAX is the maximum value for i32, this is always false.