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This is my patch patch.1n for perl5.001.
[perl5.git] / av.h
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a0d0e21e 1/* av.h
79072805 2 *
a0d0e21e 3 * Copyright (c) 1991-1994, Larry Wall
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4 *
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
7 *
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8 */
9
10struct xpvav {
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11 char* xav_array; /* pointer to malloced string */
12 SSize_t xav_fill;
13 SSize_t xav_max;
14 IV xof_off; /* ptr is incremented by offset */
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15 double xnv_nv; /* numeric value, if any */
16 MAGIC* xmg_magic; /* magic for scalar array */
17 HV* xmg_stash; /* class package */
18
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19 SV** xav_alloc;
20 SV* xav_arylen;
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21 U8 xav_flags;
22};
23
24#define AVf_REAL 1 /* free old entries */
a0d0e21e 25#define AVf_REIFY 2 /* can become real */
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26
27#define Nullav Null(AV*)
28
463ee0b2 29#define AvARRAY(av) ((SV**)((XPVAV*) SvANY(av))->xav_array)
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30#define AvALLOC(av) ((XPVAV*) SvANY(av))->xav_alloc
31#define AvMAX(av) ((XPVAV*) SvANY(av))->xav_max
32#define AvFILL(av) ((XPVAV*) SvANY(av))->xav_fill
33#define AvARYLEN(av) ((XPVAV*) SvANY(av))->xav_arylen
34#define AvFLAGS(av) ((XPVAV*) SvANY(av))->xav_flags
35
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36#define AvREAL(av) (AvFLAGS(av) & AVf_REAL)
37#define AvREAL_on(av) (AvFLAGS(av) |= AVf_REAL)
38#define AvREAL_off(av) (AvFLAGS(av) &= ~AVf_REAL)
39#define AvREIFY(av) (AvFLAGS(av) & AVf_REIFY)
40#define AvREIFY_on(av) (AvFLAGS(av) |= AVf_REIFY)
41#define AvREIFY_off(av) (AvFLAGS(av) &= ~AVf_REIFY)
42
43#define AvREALISH(av) AvFLAGS(av) /* REAL or REIFY -- shortcut */
44