X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/20f4945e16943f141ab760ffdcdbf39a5f3b734e..b256460cd383b29766d66530f181b61c40a4eccb:/av.h

diff --git a/av.h b/av.h
index 3c40dc8..8d18d25 100644
--- a/av.h
+++ b/av.h
@@ -1,36 +1,21 @@
 /*    av.h
  *
- *    Copyright (C) 1991, 1992, 1993, 1995, 1996, 1997, 1998, 1999,
- *    2000, 2001, 2002, 2005, 2006, 2007, by Larry Wall and others
+ *    Copyright (C) 1991, 1992, 1993, 1995, 1996, 1997, 1998, 1999, 2000,
+ *    2001, 2002, 2005, 2006, 2007, 2008, 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.
  *
  */
 
-#define _XPVAV_ALLOCATED_HEAD						\
-    SSize_t	xav_fill;       /* Index of last element present */	\
-    SSize_t	xav_max         /* max index for which array has space */
-
-#define _XPVAV_HEAD	\
-    union _xnvu xnv_u;	\
-    _XPVAV_ALLOCATED_HEAD
-
 struct xpvav {
-    _XPVAV_HEAD;
-    _XPVMG_HEAD;
+    HV*		xmg_stash;	/* class package */
+    union _xmgu	xmg_u;
+    SSize_t	xav_fill;       /* Index of last element present */
+    SSize_t	xav_max;        /* max index for which array has space */
+    SV**	xav_alloc;	/* pointer to beginning of C array of SVs */
 };
 
-typedef struct {
-    _XPVAV_ALLOCATED_HEAD;
-    _XPVMG_HEAD;
-} xpvav_allocated;
-
-#undef _XPVAV_ALLOCATED_HEAD
-#undef _XPVAV_HEAD
-
-/* SV**	xav_alloc; */
-#define xav_alloc xiv_u.xivu_p1
 /* SV*	xav_arylen; */
 
 /* SVpav_REAL is set for all AVs whose xav_array contents are refcounted.
@@ -43,7 +28,7 @@ typedef struct {
  * real if the array needs to be modified in some way.  Functions that
  * modify fake AVs check both flags to call av_reify() as appropriate.
  *
- * Note that the Perl stack and @DB::args have neither flag set. (Thus,
+ * Note that the Perl stack has neither flag set. (Thus,
  * items that go on the stack are never refcounted.)
  *
  * These internal details are subject to change any time.  AV
@@ -57,6 +42,8 @@ typedef struct {
 =for apidoc AmU||Nullav
 Null AV pointer.
 
+(deprecated - use C<(AV *)NULL> instead)
+
 =head1 Array Manipulation Functions
 
 =for apidoc Am|int|AvFILL|AV* av
@@ -65,13 +52,15 @@ Same as C<av_len()>.  Deprecated, use C<av_len()> instead.
 =cut
 */
 
-#define Nullav Null(AV*)
+#ifndef PERL_CORE
+#  define Nullav Null(AV*)
+#endif
 
 #define AvARRAY(av)	((av)->sv_u.svu_array)
-#define AvALLOC(av)	(*((SV***)&((XPVAV*)  SvANY(av))->xav_alloc))
+#define AvALLOC(av)	((XPVAV*)  SvANY(av))->xav_alloc
 #define AvMAX(av)	((XPVAV*)  SvANY(av))->xav_max
 #define AvFILLp(av)	((XPVAV*)  SvANY(av))->xav_fill
-#define AvARYLEN(av)	(*Perl_av_arylen_p(aTHX_ (AV*)av))
+#define AvARYLEN(av)	(*Perl_av_arylen_p(aTHX_ MUTABLE_AV(av)))
 
 #define AvREAL(av)	(SvFLAGS(av) & SVpav_REAL)
 #define AvREAL_on(av)	(SvFLAGS(av) |= SVpav_REAL)
@@ -84,8 +73,8 @@ Same as C<av_len()>.  Deprecated, use C<av_len()> instead.
 
 #define AvREALISH(av)	(SvFLAGS(av) & (SVpav_REAL|SVpav_REIFY))
                                           
-#define AvFILL(av)	((SvRMAGICAL((SV *) (av))) \
-			  ? mg_size((SV *) av) : AvFILLp(av))
+#define AvFILL(av)	((SvRMAGICAL((const SV *) (av))) \
+			 ? mg_size(MUTABLE_SV(av)) : AvFILLp(av))
 
 #define NEGATIVE_INDICES_VAR "NEGATIVE_INDICES"
 
@@ -94,10 +83,12 @@ Same as C<av_len()>.  Deprecated, use C<av_len()> instead.
 
 Creates a new AV.  The reference count is set to 1.
 
+Perl equivalent: C<my @array;>.
+
 =cut
 */
 
-#define newAV()	((AV *)newSV_type(SVt_PVAV))
+#define newAV()	MUTABLE_AV(newSV_type(SVt_PVAV))
 
 /*
  * Local variables: