Type Definition secp256k1_zkp_sys::EcdsaAdaptorNonceFn

pub type EcdsaAdaptorNonceFn = Option<unsafe extern "C" fn(nonce32: *mut c_uchar, msg32: *const c_uchar, key32: *const c_uchar, pk33: *const c_uchar, algo: *const c_uchar, algo_len: size_t, data: *mut c_void) -> c_int>;

Same as secp256k1_nonce_function_hardened with the exception of using the compressed 33-byte encoding for the pubkey argument.