/* PERL_CALLCONV IV Perl_sv_2iv(pTHX_ SV *sv); */
PERL_CALLCONV IV Perl_sv_2iv_flags(pTHX_ SV *const sv, const I32 flags);
PERL_CALLCONV SV* Perl_sv_2mortal(pTHX_ SV *const sv);
-PERL_CALLCONV NV Perl_sv_2nv(pTHX_ SV *const sv);
+PERL_CALLCONV NV Perl_sv_2nv_flags(pTHX_ SV *const sv, const I32 flags);
PERL_CALLCONV SV* Perl_sv_2num(pTHX_ SV *const sv)
__attribute__nonnull__(pTHX_1);
#define PERL_ARGS_ASSERT_SV_2NUM \