| 1 | /* av.h |
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| 2 | * |
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| 3 | * Copyright (c) 1991-1997, Larry Wall |
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| 4 | * |
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| 5 | * You may distribute under the terms of either the GNU General Public |
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| 6 | * License or the Artistic License, as specified in the README file. |
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| 7 | * |
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| 8 | */ |
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| 9 | |
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| 10 | struct xpvav { |
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| 11 | char* xav_array; /* pointer to first array element */ |
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| 12 | SSize_t xav_fill; |
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| 13 | SSize_t xav_max; |
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| 14 | IV xof_off; /* ptr is incremented by offset */ |
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| 15 | double xnv_nv; /* numeric value, if any */ |
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| 16 | MAGIC* xmg_magic; /* magic for scalar array */ |
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| 17 | HV* xmg_stash; /* class package */ |
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| 18 | |
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| 19 | SV** xav_alloc; /* pointer to malloced string */ |
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| 20 | SV* xav_arylen; |
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| 21 | U8 xav_flags; |
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| 22 | }; |
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| 23 | |
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| 24 | #define AVf_REAL 1 /* free old entries */ |
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| 25 | #define AVf_REIFY 2 /* can become real */ |
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| 26 | #define AVf_REUSED 4 /* got undeffed--don't turn old memory into SVs now */ |
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| 27 | |
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| 28 | #define Nullav Null(AV*) |
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| 29 | |
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| 30 | #define AvARRAY(av) ((SV**)((XPVAV*) SvANY(av))->xav_array) |
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| 31 | #define AvALLOC(av) ((XPVAV*) SvANY(av))->xav_alloc |
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| 32 | #define AvMAX(av) ((XPVAV*) SvANY(av))->xav_max |
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| 33 | #define AvFILL(av) ((XPVAV*) SvANY(av))->xav_fill |
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| 34 | #define AvARYLEN(av) ((XPVAV*) SvANY(av))->xav_arylen |
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| 35 | #define AvFLAGS(av) ((XPVAV*) SvANY(av))->xav_flags |
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| 36 | |
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| 37 | #define AvREAL(av) (AvFLAGS(av) & AVf_REAL) |
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| 38 | #define AvREAL_on(av) (AvFLAGS(av) |= AVf_REAL) |
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| 39 | #define AvREAL_off(av) (AvFLAGS(av) &= ~AVf_REAL) |
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| 40 | #define AvREIFY(av) (AvFLAGS(av) & AVf_REIFY) |
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| 41 | #define AvREIFY_on(av) (AvFLAGS(av) |= AVf_REIFY) |
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| 42 | #define AvREIFY_off(av) (AvFLAGS(av) &= ~AVf_REIFY) |
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| 43 | #define AvREUSED(av) (AvFLAGS(av) & AVf_REUSED) |
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| 44 | #define AvREUSED_on(av) (AvFLAGS(av) |= AVf_REUSED) |
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| 45 | #define AvREUSED_off(av) (AvFLAGS(av) &= ~AVf_REUSED) |
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| 46 | |
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| 47 | #define AvREALISH(av) (AvFLAGS(av) & (AVf_REAL|AVf_REIFY)) |
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| 48 | |
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