use Inline 'C' => <<CEND;
SV* x (HV* self) {
  SV** x_ref = hv_fetch( self, "x", 1, 0 );
  return (x_ref ? *x_ref : &PL_sv_undef);
}
CEND

##</code><code>##

Attempt to free temp prematurely: SV 0x816f1c4.
Attempt to free unreferenced scalar: SV 0x816f1c4.

##</code><code>##

use Inline 'C' => <<CEND;
void x (HV* self) {
  SV** x_ref = hv_fetch( self, "x", 1, 0 );
  Inline_Stack_Vars;
  Inline_Stack_Reset;
  Inline_Stack_Push (x_ref ? *x_ref : &PL_sv_undef);
  Inline_Stack_Done;
}
CEND