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/* av.h
*
* Copyright (c) 1991-1997, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*
*/
struct xpvav {
char* xav_array; /* pointer to first array element */
SSize_t xav_fill;
SSize_t xav_max;
IV xof_off; /* ptr is incremented by offset */
double xnv_nv; /* numeric value, if any */
MAGIC* xmg_magic; /* magic for scalar array */
HV* xmg_stash; /* class package */
SV** xav_alloc; /* pointer to malloced string */
SV* xav_arylen;
U8 xav_flags;
};
#define AVf_REAL 1 /* free old entries */
#define AVf_REIFY 2 /* can become real */
#define AVf_REUSED 4 /* got undeffed--don't turn old memory into SVs now */
#define Nullav Null(AV*)
#define AvARRAY(av) ((SV**)((XPVAV*) SvANY(av))->xav_array)
#define AvALLOC(av) ((XPVAV*) SvANY(av))->xav_alloc
#define AvMAX(av) ((XPVAV*) SvANY(av))->xav_max
#define AvFILL(av) ((XPVAV*) SvANY(av))->xav_fill
#define AvARYLEN(av) ((XPVAV*) SvANY(av))->xav_arylen
#define AvFLAGS(av) ((XPVAV*) SvANY(av))->xav_flags
#define AvREAL(av) (AvFLAGS(av) & AVf_REAL)
#define AvREAL_on(av) (AvFLAGS(av) |= AVf_REAL)
#define AvREAL_off(av) (AvFLAGS(av) &= ~AVf_REAL)
#define AvREIFY(av) (AvFLAGS(av) & AVf_REIFY)
#define AvREIFY_on(av) (AvFLAGS(av) |= AVf_REIFY)
#define AvREIFY_off(av) (AvFLAGS(av) &= ~AVf_REIFY)
#define AvREUSED(av) (AvFLAGS(av) & AVf_REUSED)
#define AvREUSED_on(av) (AvFLAGS(av) |= AVf_REUSED)
#define AvREUSED_off(av) (AvFLAGS(av) &= ~AVf_REUSED)
#define AvREALISH(av) (AvFLAGS(av) & (AVf_REAL|AVf_REIFY))
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