== Why is this an issue?

When using a floating-point ``++while++`` loop counter, an accumulation of rounding errors may result in a mismatch between the expected and actual number of iterations.

Even if floating-point loop counters appears to behave correctly on one implementation, it may give a different number of iterations on another implementation.

== How to fix it

To fix the issue, use an integer loop counter instead. This avoids the accumulation of rounding errors and ensures that the loop iterates the expected number of times.

=== Code examples

==== Noncompliant code example

[source,rust,diff-id=1,diff-type=noncompliant]
----
fn main() {
    let mut counter = 0.0;
    while counter < 10.0 {
        println!("Counter: {}", counter);
        counter += 1.0;
    }
}
----

==== Compliant solution

[source,rust,diff-id=1,diff-type=compliant]
----
fn main() {
    let mut counter = 0;
    while counter < 10 {
        println!("Counter: {}", counter);
        counter += 1;
    }
}
----

== Resources
=== Documentation

* Clippy Lints - https://rust-lang.github.io/rust-clippy/master/index.html#while_float