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Diffstat (limited to 'contrib/perl5/av.h')
| -rw-r--r-- | contrib/perl5/av.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/contrib/perl5/av.h b/contrib/perl5/av.h new file mode 100644 index 000000000000..8de81f42e424 --- /dev/null +++ b/contrib/perl5/av.h @@ -0,0 +1,51 @@ +/* av.h + * + * Copyright (c) 1991-1998, 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; /* Index of last element present */ + SSize_t xav_max; /* Number of elements for which array has space */ + 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 AvFILLp(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)) + +#define AvFILL(av) ((SvRMAGICAL((SV *) (av))) \ + ? mg_size((SV *) av) : AvFILLp(av)) + |