Deprecate above \xFF in bitwise string ops

This is already a fatal error for operations whose outcome depends on
them, but in things like

  "abc" & "def\x{100}"

the wide character doesn't actually need to participate in the AND, and
so perl doesn't.  As a result of the discussion in the thread beginning
with http://nntp.perl.org/group/perl.perl5.porters/244884, it was
decided to deprecate these ones too.

1 files changed, 4 insertions, 0 deletions

diff --git a/op.h b/op.h
index ed4ff9d1a7..64668dcf0a 100644
--- a/op.h
+++ b/op.h
@@ -1112,6 +1112,10 @@ C<sib> is non-null. For a higher-level interface, see C<L</op_sibling_splice>>.
 static const char * const fatal_above_ff_msg
     = "Use of strings with code points over 0xFF as arguments to "
       "%s operator is not allowed";
+static const char * const deprecated_above_ff_msg
+    = "Use of strings with code points over 0xFF as arguments to "
+      "%s operator is deprecated. This will be a fatal error in "
+      "Perl 5.32";
 #endif