== Why is this an issue?

include::../description.adoc[]

=== Noncompliant code example

[source,java]
----
for (int i = 1; i != 10; i += 2)  // Noncompliant. Infinite; i goes from 9 straight to 11.
{
  //...
} 
----


=== Compliant solution

[source,java]
----
for (int i = 1; i <= 10; i += 2)  // Compliant
{
  //...
} 
----


=== Exceptions

Equality operators are ignored if the loop counter is not modified within the body of the loop and either:

* starts below the ending value and is incremented by 1 on each iteration.
* starts above the ending value and is decremented by 1 on each iteration.

Equality operators are also ignored when the test is against ``++null++``.

[source,java]
----
for (int i = 0; arr[i] != null; i++) {
  // ...
}

for (int i = 0; (item = arr[i]) != null; i++) {
  // ...
}
----


== Resources

* CWE - https://cwe.mitre.org/data/definitions/835[CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')]
* https://wiki.sei.cmu.edu/confluence/x/x9YxBQ[CERT, MSC21-C.] - Use robust loop termination conditions

ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

include::../message.adoc[]

'''
== Comments And Links
(visible only on this page)

include::../comments-and-links.adoc[]

endif::env-github,rspecator-view[]