PERL_CALLCONV void Perl_hv_riter_set(pTHX_ HV* hv, I32 riter);
PERL_CALLCONV void Perl_hv_eiter_set(pTHX_ HV* hv, HE* eiter);
PERL_CALLCONV char** Perl_hv_name_p(pTHX_ HV* hv);
-PERL_CALLCONV void Perl_hv_name_set(pTHX_ HV* hv, const char *, STRLEN len, int flags);
+PERL_CALLCONV void Perl_hv_name_set(pTHX_ HV* hv, const char *, I32 len, int flags);
PERL_CALLCONV I32* Perl_hv_placeholders_p(pTHX_ HV* hv);
PERL_CALLCONV I32 Perl_hv_placeholders_get(pTHX_ HV* hv);
PERL_CALLCONV void Perl_hv_placeholders_set(pTHX_ HV* hv, I32 ph);