PERL_CALLCONV HV* Perl_gv_stashsv(pTHX_ SV* sv, I32 create);
PERL_CALLCONV void Perl_hv_clear(pTHX_ HV* tb);
PERL_CALLCONV void Perl_hv_delayfree_ent(pTHX_ HV* hv, HE* entry);
-PERL_CALLCONV SV* Perl_hv_delete(pTHX_ HV* tb, const char* key, U32 klen, I32 flags);
+PERL_CALLCONV SV* Perl_hv_delete(pTHX_ HV* tb, const char* key, I32 klen, I32 flags);
PERL_CALLCONV SV* Perl_hv_delete_ent(pTHX_ HV* tb, SV* key, I32 flags, U32 hash);
-PERL_CALLCONV bool Perl_hv_exists(pTHX_ HV* tb, const char* key, U32 klen);
+PERL_CALLCONV bool Perl_hv_exists(pTHX_ HV* tb, const char* key, I32 klen);
PERL_CALLCONV bool Perl_hv_exists_ent(pTHX_ HV* tb, SV* key, U32 hash);
-PERL_CALLCONV SV** Perl_hv_fetch(pTHX_ HV* tb, const char* key, U32 klen, I32 lval);
+PERL_CALLCONV SV** Perl_hv_fetch(pTHX_ HV* tb, const char* key, I32 klen, I32 lval);
PERL_CALLCONV HE* Perl_hv_fetch_ent(pTHX_ HV* tb, SV* key, I32 lval, U32 hash);
PERL_CALLCONV void Perl_hv_free_ent(pTHX_ HV* hv, HE* entry);
PERL_CALLCONV I32 Perl_hv_iterinit(pTHX_ HV* tb);
PERL_CALLCONV SV* Perl_hv_iterval(pTHX_ HV* tb, HE* entry);
PERL_CALLCONV void Perl_hv_ksplit(pTHX_ HV* hv, IV newmax);
PERL_CALLCONV void Perl_hv_magic(pTHX_ HV* hv, GV* gv, int how);
-PERL_CALLCONV SV** Perl_hv_store(pTHX_ HV* tb, const char* key, U32 klen, SV* val, U32 hash);
+PERL_CALLCONV SV** Perl_hv_store(pTHX_ HV* tb, const char* key, I32 klen, SV* val, U32 hash);
PERL_CALLCONV HE* Perl_hv_store_ent(pTHX_ HV* tb, SV* key, SV* val, U32 hash);
PERL_CALLCONV void Perl_hv_undef(pTHX_ HV* tb);
PERL_CALLCONV I32 Perl_ibcmp(pTHX_ const char* a, const char* b, I32 len);