Function libperl_sys::Perl_sv_magicext

pub unsafe extern "C" fn Perl_sv_magicext(
    my_perl: *mut PerlInterpreter, 
    sv: *mut SV, 
    obj: *mut SV, 
    how: c_int, 
    vtbl: *const MGVTBL, 
    name: *const c_char, 
    namlen: I32
) -> *mut MAGIC