# HG changeset patch
# User Petter T.
# Date 1698423567 -7200
#      Fri Oct 27 18:19:27 2023 +0200
# Node ID 8d58cf0f6d3477f64cc0dd94e12751f571732cb2
# Parent  4c643f660de4c4580f5ee57c7e631ca519250db0
Implement clone for octave_fcn_cache

Breaking closure cycles for nested stack frames could potentially cause
problems without clone implemented, as seen in bug #64778.

* ov-fcn.h: Implement clone

diff -r 4c643f660de4 -r 8d58cf0f6d34 libinterp/octave-value/ov-fcn.h
--- a/libinterp/octave-value/ov-fcn.h	Fri Oct 27 18:19:20 2023 +0200
+++ b/libinterp/octave-value/ov-fcn.h	Fri Oct 27 18:19:27 2023 +0200
@@ -58,6 +58,9 @@
   octave_fcn_cache (const std::string &name) :m_fcn_name (name) { }
   octave_fcn_cache () {}
 
+  octave_base_value *
+  clone () const { return new octave_fcn_cache (*this); }
+
   bool is_function_cache (void) const { return true; }
 
   bool has_function_cache (void) const { return true; }