secp256k1I128Det static method

void secp256k1I128Det(
  1. Secp256k1Int128 r,
  2. BigInt a,
  3. BigInt b,
  4. BigInt c,
  5. BigInt d,
)

Implementation

static void secp256k1I128Det(
  Secp256k1Int128 r,
  BigInt a,
  BigInt b,
  BigInt c,
  BigInt d,
) {
  BigInt ad = (a * d).toI128;
  BigInt bc = (b * c).toI128;
  r.set(ad - bc);
}