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[p5sagit/p5-mst-13.2.git] / hv.c

diff --git a/hv.c b/hv.c
index 627140b..d3b86ed 100644 (file)
--- a/hv.c
+++ b/hv.c
@@ -14,6 +14,16 @@
 
 /* 
 =head1 Hash Manipulation Functions
+
+A HV structure represents a Perl hash. It consists mainly of an array
+of pointers, each of which points to a linked list of HE structures. The
+array is indexed by the hash function of the key, so each linked list
+represents all the hash entries with the same hash value. Each HE contains
+a pointer to the actual value, plus a pointer to a HEK structure which
+holds the key and hash value.
+
+=cut
+
 */
 
 #include "EXTERN.h"
@@ -218,7 +228,7 @@ Perl_hv_store(pTHX_ HV *hv, const char *key, I32 klen_i32, SV *val, U32 hash)
        flags = 0;
     }
     hek = hv_fetch_common (hv, NULL, key, klen, flags,
-                          (HV_FETCH_ISSTORE|HV_FETCH_JUST_SV), val, 0);
+                          (HV_FETCH_ISSTORE|HV_FETCH_JUST_SV), val, hash);
     return hek ? &HeVAL(hek) : NULL;
 }
 
@@ -505,6 +515,7 @@ S_hv_fetch_common(pTHX_ HV *hv, SV *keysv, const char *key, STRLEN klen,
                key = (const char*)strupr((char*)key);
                is_utf8 = 0;
                hash = 0;
+               keysv = 0;
 
                if (flags & HVhek_FREEKEY) {
                    Safefree(keysave);
@@ -547,6 +558,7 @@ S_hv_fetch_common(pTHX_ HV *hv, SV *keysv, const char *key, STRLEN klen,
                    key = (const char*)strupr((char*)key);
                    is_utf8 = 0;
                    hash = 0;
+                   keysv = 0;
 
                    if (flags & HVhek_FREEKEY) {
                        Safefree(keysave);
@@ -2016,9 +2028,10 @@ S_unshare_hek_or_pvn(pTHX_ HEK *hek, const char *str, I32 len, U32 hash)
     UNLOCK_STRTAB_MUTEX;
     if (!found && ckWARN_d(WARN_INTERNAL))
        Perl_warner(aTHX_ packWARN(WARN_INTERNAL),
-                    "Attempt to free non-existent shared string '%s'%s",
+                    "Attempt to free non-existent shared string '%s'%s"
+                    pTHX__FORMAT,
                     hek ? HEK_KEY(hek) : str,
-                    (k_flags & HVhek_UTF8) ? " (utf8)" : "");
+                    ((k_flags & HVhek_UTF8) ? " (utf8)" : "") pTHX__VALUE);
     if (k_flags & HVhek_FREEKEY)
        Safefree(str);
 }