PERL_CALLCONV int Perl_magic_nextpack(pTHX_ SV* sv, MAGIC* mg, SV* key);
PERL_CALLCONV U32 Perl_magic_regdata_cnt(pTHX_ SV* sv, MAGIC* mg);
PERL_CALLCONV int Perl_magic_regdatum_get(pTHX_ SV* sv, MAGIC* mg);
+PERL_CALLCONV void Perl_magic_regdatum_set(pTHX_ SV* sv, MAGIC* mg);
PERL_CALLCONV int Perl_magic_set(pTHX_ SV* sv, MAGIC* mg);
PERL_CALLCONV int Perl_magic_setamagic(pTHX_ SV* sv, MAGIC* mg);
PERL_CALLCONV int Perl_magic_setarylen(pTHX_ SV* sv, MAGIC* mg);