perl 5.002beta2 patch: toke.c
[p5sagit/p5-mst-13.2.git] / av.h
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a0d0e21e 1/* av.h
79072805 2 *
a0d0e21e 3 * Copyright (c) 1991-1994, Larry Wall
79072805 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 *
79072805 8 */
9
10struct xpvav {
a0d0e21e 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 */
79072805 15 double xnv_nv; /* numeric value, if any */
16 MAGIC* xmg_magic; /* magic for scalar array */
17 HV* xmg_stash; /* class package */
18
79072805 19 SV** xav_alloc;
20 SV* xav_arylen;
79072805 21 U8 xav_flags;
22};
23
24#define AVf_REAL 1 /* free old entries */
a0d0e21e 25#define AVf_REIFY 2 /* can become real */
4633a7c4 26#define AVf_REUSED 4 /* got undeffed--don't turn old memory into SVs now */
79072805 27
28#define Nullav Null(AV*)
29
463ee0b2 30#define AvARRAY(av) ((SV**)((XPVAV*) SvANY(av))->xav_array)
79072805 31#define AvALLOC(av) ((XPVAV*) SvANY(av))->xav_alloc
32#define AvMAX(av) ((XPVAV*) SvANY(av))->xav_max
33#define AvFILL(av) ((XPVAV*) SvANY(av))->xav_fill
34#define AvARYLEN(av) ((XPVAV*) SvANY(av))->xav_arylen
35#define AvFLAGS(av) ((XPVAV*) SvANY(av))->xav_flags
36
a0d0e21e 37#define AvREAL(av) (AvFLAGS(av) & AVf_REAL)
38#define AvREAL_on(av) (AvFLAGS(av) |= AVf_REAL)
39#define AvREAL_off(av) (AvFLAGS(av) &= ~AVf_REAL)
40#define AvREIFY(av) (AvFLAGS(av) & AVf_REIFY)
41#define AvREIFY_on(av) (AvFLAGS(av) |= AVf_REIFY)
42#define AvREIFY_off(av) (AvFLAGS(av) &= ~AVf_REIFY)
4633a7c4 43#define AvREUSED(av) (AvFLAGS(av) & AVf_REUSED)
44#define AvREUSED_on(av) (AvFLAGS(av) |= AVf_REUSED)
45#define AvREUSED_off(av) (AvFLAGS(av) &= ~AVf_REUSED)
a0d0e21e 46
47#define AvREALISH(av) AvFLAGS(av) /* REAL or REIFY -- shortcut */
48