pub unsafe extern "C" fn ASN1_d2i_fp(
xnew: Option<unsafe extern "C" fn() -> *mut c_void>,
d2i: Option<unsafe extern "C" fn(*mut *mut c_void, *mut *const u8, i64) -> *mut c_void>,
in_: *mut _IO_FILE,
x: *mut *mut c_void,
) -> *mut c_void