[Octave-bug-tracker] [bug #64783] bytecode interpreter: Default number of output arguments not 1 for anonymous functions

[Fernando]

Follow-up Comment #11, bug#64783 (group octave):

Here is a possible fix. make check is clean, at least for my configuration.


diff -r 3904d7116c8c libinterp/parse-tree/pt-bytecode-vm.cc
--- a/libinterp/parse-tree/pt-bytecode-vm.cc    Thu Feb 01 23:34:35 2024 -0500
+++ b/libinterp/parse-tree/pt-bytecode-vm.cc    Fri Feb 09 09:22:45 2024 +0100
@@ -6415,6 +6415,14 @@
 
 ret_anon:
   {
+    // Don't allow a comma-separated list to escape (see bug #64783).
+    octave_value &ret = TOP_OV ();
+    if (ret.is_cs_list ())
+      {
+        const octave_value_list lst = ret.list_value ();
+        ret = lst(0);
+      }
+
     // We need to tell the bytecode frame we are unwinding so that it can
save
     // variables on the VM stack if it is referenced from somewhere else.
     m_tw->get_current_stack_frame ()->vm_unwinds ();




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