== Why is this an issue?

Most COBOL environments do not support recursive ``++PERFORM++`` calls, since they can cause unpredictable results. This rule raises an issue when recursive ``++PERFORM++`` calls are used. 

=== Noncompliant code example

[source,cobol]
----
PARAGRAPH1.
  PERFORM PARAGRAPH2.

PARAGRAPH2.
  PERFORM PARAGRAPH3.

PARAGRAPH3.
  PERFORM PARAGRAPH1.
----

=== Compliant solution

[source,cobol]
----
PARAGRAPH1.
  PERFORM PARAGRAPH2.

PARAGRAPH2.
  PERFORM PARAGRAPH3.

PARAGRAPH3.
  DISPLAY "THIS IS PARAGRAPH3".
----

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

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

=== Message

Break the recursion between the following module(s): A, B, C...


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

=== on 24 Jan 2014, 13:13:39 Dinesh Bolkensteyn wrote:
Very interesting, ILE COBOL supports a "RECURSIVE" clause: \http://publib.boulder.ibm.com/infocenter/iadthelp/v7r1/index.jsp?topic=/com.ibm.etools.iseries.langref.doc/c092539591.htm

=== on 21 Aug 2015, 18:34:39 Ann Campbell wrote:
\[~freddy.mallet] since you had set this to blocker, I've added the bug tag, but ordinarily I would have downgraded to Major based on the description ("many environments do not support").

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

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