pub type X509_STORE_CTX_verify_cb = Option<unsafe extern "C" fn(arg1: c_int, arg2: *mut X509_STORE_CTX) -> c_int>;
enum X509_STORE_CTX_verify_cb { None, Some(unsafe extern "C" fn(_: i32, _: *mut x509_store_ctx_st) -> i32), }
No value.
Some value of type T.
T