/* av.h
*
* Copyright (C) 1991, 1992, 1993, 1995, 1996, 1997, 1998, 1999,
- * 2000, 2001, 2002, by Larry Wall and others
+ * 2000, 2001, 2002, 2005, 2006, 2007, 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 {
- char* xav_array; /* pointer to first array element */
- SSize_t xav_fill; /* Index of last element present */
- SSize_t xav_max; /* max index for which array has space */
- IV xof_off; /* ptr is incremented by offset */
- NV xnv_nv; /* numeric value, if any */
- MAGIC* xmg_magic; /* magic for scalar array */
- HV* xmg_stash; /* class package */
-
- SV** xav_alloc; /* pointer to beginning of C array of SVs */
- SV* xav_arylen;
+ _XPVAV_HEAD;
+ _XPVMG_HEAD;
};
+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; */
-/* AVf_REAL is set for all AVs whose xav_array contents are refcounted.
+/* SVpav_REAL is set for all AVs whose xav_array contents are refcounted.
* Some things like "@_" and the scratchpad list do not set this, to
* indicate that they are cheating (for efficiency) by not refcounting
* the AV's contents.
*
- * AVf_REIFY is only meaningful on such "fake" AVs (i.e. where AVf_REAL
+ * SVpav_REIFY is only meaningful on such "fake" AVs (i.e. where SVpav_REAL
* is not set). It indicates that the fake AV is capable of becoming
* 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.
#define Nullav Null(AV*)
-#define AvARRAY(av) ((SV**)((XPVAV*) SvANY(av))->xav_array)
-#define AvALLOC(av) ((XPVAV*) SvANY(av))->xav_alloc
+#define AvARRAY(av) ((av)->sv_u.svu_array)
+#define AvALLOC(av) (*((SV***)&((XPVAV*) SvANY(av))->xav_alloc))
#define AvMAX(av) ((XPVAV*) SvANY(av))->xav_max
#define AvFILLp(av) ((XPVAV*) SvANY(av))->xav_fill
-#define AvARYLEN(av) ((XPVAV*) SvANY(av))->xav_arylen
+#define AvARYLEN(av) (*Perl_av_arylen_p(aTHX_ (AV*)av))
#define AvREAL(av) (SvFLAGS(av) & SVpav_REAL)
#define AvREAL_on(av) (SvFLAGS(av) |= SVpav_REAL)
? mg_size((SV *) av) : AvFILLp(av))
#define NEGATIVE_INDICES_VAR "NEGATIVE_INDICES"
+
+/*
+=for apidoc newAV
+
+Creates a new AV. The reference count is set to 1.
+
+=cut
+*/
+
+#define newAV() ((AV *)newSV_type(SVt_PVAV))
+
+/*
+ * Local variables:
+ * c-indentation-style: bsd
+ * c-basic-offset: 4
+ * indent-tabs-mode: t
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 noet:
+ */