ref can return false on references

[perl5.git] / opcode.pl

diff --git a/opcode.pl b/opcode.pl
index c44ff3f..e13d14d 100755 (executable)
--- a/opcode.pl
+++ b/opcode.pl
@@ -38,7 +38,8 @@ print <<"END";
 /*
  *    opcode.h
  *
- *    Copyright (c) 1997-2003, Larry Wall
+ *    Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ *    2000, 2001, 2002, 2003, by Larry Wall and others
  *
  *    You may distribute under the terms of either the GNU General Public
  *    License or the Artistic License, as specified in the README file.
@@ -59,7 +60,7 @@ print ON <<"END";
 /*
  *    opnames.h
  *
- *    Copyright (c) 1997-2003, Larry Wall
+ *    Copyright (C) 1999, 2000, 2001, 2002, 2003, by Larry Wall and others
  *
  *    You may distribute under the terms of either the GNU General Public
  *    License or the Artistic License, as specified in the README file.
@@ -89,10 +90,10 @@ print <<END;
 START_EXTERN_C
 
 
-#define OP_NAME(o) (o->op_type == OP_CUSTOM ? custom_op_name(o) : \\
-                    PL_op_name[o->op_type])
-#define OP_DESC(o) (o->op_type == OP_CUSTOM ? custom_op_desc(o) : \\
-                    PL_op_desc[o->op_type])
+#define OP_NAME(o) ((o)->op_type == OP_CUSTOM ? custom_op_name(o) : \\
+                    PL_op_name[(o)->op_type])
+#define OP_DESC(o) ((o)->op_type == OP_CUSTOM ? custom_op_desc(o) : \\
+                    PL_op_desc[(o)->op_type])
 
 #ifndef DOINIT
 EXT char *PL_op_name[];
@@ -646,8 +647,8 @@ anonhash    anonymous hash ({})     ck_fun          ms@     L
 
 splice         splice                  ck_fun          m@      A S? S? L
 push           push                    ck_fun          imsT@   A L
-pop            pop                     ck_shift        s%      A
-shift          shift                   ck_shift        s%      A
+pop            pop                     ck_shift        s%      A?
+shift          shift                   ck_shift        s%      A?
 unshift                unshift                 ck_fun          imsT@   A L
 sort           sort                    ck_sort         m@      C? L
 reverse                reverse                 ck_fun          mt@     L