PERL_CALLCONV void Perl_cv_ckproto(pTHX_ const CV* cv, const GV* gv, const char* p)
__attribute__nonnull__(pTHX_1);
+PERL_CALLCONV void Perl_cv_ckproto_len(pTHX_ const CV* cv, const GV* gv, const char* p, const STRLEN len)
+ __attribute__nonnull__(pTHX_1);
+
PERL_CALLCONV CV* Perl_cv_clone(pTHX_ CV* proto)
__attribute__nonnull__(pTHX_1);