X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/71be2cbc73608e37e1a2ab7e459a02111137d1b0..d1b8022985c09823f9032ec74d6ce16d9391f57d:/hv.h?ds=sidebyside

diff --git a/hv.h b/hv.h
index 7c04cc2..466f33d 100644
--- a/hv.h
+++ b/hv.h
@@ -1,6 +1,6 @@
 /*    hv.h
  *
- *    Copyright (c) 1991-1994, Larry Wall
+ *    Copyright (c) 1991-1997, 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.
@@ -22,11 +22,12 @@ struct hek {
     char	hek_key[1];
 };
 
+/* This structure must match the beginning of struct xpvmg in sv.h. */
 struct xpvhv {
     char *	xhv_array;	/* pointer to malloced string */
     STRLEN	xhv_fill;	/* how full xhv_array currently is */
     STRLEN	xhv_max;	/* subscript of last element of xhv_array */
-    I32		xhv_keys;	/* how many elements in the array */
+    IV		xhv_keys;	/* how many elements in the array */
     double	xnv_nv;		/* numeric value, if any */
     MAGIC*	xmg_magic;	/* magic for scalar array */
     HV*		xmg_stash;	/* class package */
@@ -44,7 +45,7 @@ struct xpvhv {
 	register U32 hash_PeRlHaSh = 0; \
 	while (i_PeRlHaSh--) \
 	    hash_PeRlHaSh = hash_PeRlHaSh * 33 + *s_PeRlHaSh++; \
-	(hash) = hash_PeRlHaSh; \
+	(hash) = hash_PeRlHaSh + (hash_PeRlHaSh>>5); \
     } STMT_END
 
 
@@ -95,9 +96,11 @@ struct xpvhv {
 #define HeKLEN(he)		HEK_LEN(HeKEY_hek(he))
 #define HeVAL(he)		(he)->hent_val
 #define HeHASH(he)		HEK_HASH(HeKEY_hek(he))
-#define HePV(he)		((HeKLEN(he) == HEf_SVKEY) ?		\
-				 SvPV(HeKEY_sv(he),na) :		\
-				 HeKEY(he))
+#define HePV(he,lp)		((HeKLEN(he) == HEf_SVKEY) ?		\
+				 SvPV(HeKEY_sv(he),lp) :		\
+				 (((lp = HeKLEN(he)) >= 0) ?		\
+				  HeKEY(he) : Nullch))
+
 #define HeSVKEY(he)		((HeKEY(he) && 				\
 				  HeKLEN(he) == HEf_SVKEY) ?		\
 				 HeKEY_sv(he) : Nullsv)
@@ -107,8 +110,8 @@ struct xpvhv {
 				  HeKEY_sv(he) :			\
 				  sv_2mortal(newSVpv(HeKEY(he),		\
 						     HeKLEN(he)))) :	\
-				 &sv_undef)
-#define HeSVKEY_set(he,sv)	(HeKEY_sv(he) = sv)
+				 &PL_sv_undef)
+#define HeSVKEY_set(he,sv)	((HeKLEN(he) = HEf_SVKEY), (HeKEY_sv(he) = sv))
 
 #define Nullhek Null(HEK*)
 #define HEK_BASESIZE		STRUCT_OFFSET(HEK, hek_key[0])