Add some edge cases to join.t test

[perl5.git] / pp_sort.c

diff --git a/pp_sort.c b/pp_sort.c
index 56c0aac..a67ad4e 100644 (file)
--- a/pp_sort.c
+++ b/pp_sort.c
@@ -1588,7 +1588,10 @@ PP(pp_sort)
            if (SvREADONLY(av))
                Perl_croak_no_modify();
            else
+           {
                SvREADONLY_on(av);
+               save_pushptr((void *)av, SAVEt_READONLY_OFF);
+           }
            p1 = p2 = AvARRAY(av);
            sorting_av = 1;
        }