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/* $RCSfile: hash.h,v $$Revision: 4.1 $$Date: 92/08/07 18:21:52 $
*
* Copyright (c) 1991, 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.
*
* $Log: hash.h,v $
* Revision 4.1 92/08/07 18:21:52 lwall
*
* Revision 4.0.1.2 91/11/05 17:24:31 lwall
* patch11: random cleanup
*
* Revision 4.0.1.1 91/06/07 11:10:33 lwall
* patch4: new copyright notice
*
* Revision 4.0 91/03/20 01:22:38 lwall
* 4.0 baseline.
*
*/
#define FILLPCT 80 /* don't make greater than 99 */
#define DBM_CACHE_MAX 63 /* cache 64 entries for dbm file */
/* (resident array acts as a write-thru cache)*/
#define COEFFSIZE (16 * 8) /* size of coeff array */
typedef struct he HE;
struct he {
HE *hent_next;
char *hent_key;
SV *hent_val;
U32 hent_hash;
I32 hent_klen;
};
struct xpvhv {
char * xpv_pv; /* pointer to malloced string */
STRLEN xpv_cur; /* length of xp_pv as a C string */
STRLEN xpv_len; /* allocated size */
STRLEN 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 */
MAGIC* xhv_magic; /* magic for elements */
HE **xhv_array;
I32 xhv_max; /* subscript of last element of xhv_array */
I32 xhv_dosplit; /* how full to get before splitting */
I32 xhv_fill; /* how full xhv_array currently is */
I32 xhv_riter; /* current root of iterator */
HE *xhv_eiter; /* current entry of iterator */
PMOP *xhv_pmroot; /* list of pm's for this package */
char *xhv_name; /* name, if a symbol table */
#ifdef SOME_DBM
#ifdef HAS_GDBM
GDBM_FILE xhv_dbm;
#else
#ifdef HAS_NDBM
DBM *xhv_dbm;
#else
I32 xhv_dbm;
#endif
#endif
#endif
unsigned char xhv_coeffsize; /* is 0 for symbol tables */
};
#define Nullhv Null(HV*)
#define HvMAGIC(hv) ((XPVHV*) SvANY(hv))->xhv_magic
#define HvARRAY(hv) ((XPVHV*) SvANY(hv))->xhv_array
#define HvMAX(hv) ((XPVHV*) SvANY(hv))->xhv_max
#define HvDOSPLIT(hv) ((XPVHV*) SvANY(hv))->xhv_dosplit
#define HvFILL(hv) ((XPVHV*) SvANY(hv))->xhv_fill
#define HvRITER(hv) ((XPVHV*) SvANY(hv))->xhv_riter
#define HvEITER(hv) ((XPVHV*) SvANY(hv))->xhv_eiter
#define HvPMROOT(hv) ((XPVHV*) SvANY(hv))->xhv_pmroot
#define HvNAME(hv) ((XPVHV*) SvANY(hv))->xhv_name
#define HvDBM(hv) ((XPVHV*) SvANY(hv))->xhv_dbm
#define HvCOEFFSIZE(hv) ((XPVHV*) SvANY(hv))->xhv_coeffsize
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