/*
* Performs a<sup>2</sup>
* @param a The number to square.
* @param aLen The length of the number to square.
*/
internal static int[] square(int[] a, int aLen, int[] res)
{
long carry;
for (int i = 0; i < aLen; i++)
{
carry = 0;
for (int j = i + 1; j < aLen; j++)
{
carry = unsignedMultAddAdd(a[i], a[j], res[i + j], (int)carry);
res[i + j] = (int)carry;
carry = java.dotnet.lang.Operator.shiftRightUnsignet(carry, 32);
}
res[i + aLen] = (int)carry;
}
BitLevel.shiftLeftOneBit(res, res, aLen << 1);
carry = 0;
for (int i = 0, index = 0; i < aLen; i++, index++)
{
carry = unsignedMultAddAdd(a[i], a[i], res[index], (int)carry);
res[index] = (int)carry;
carry = java.dotnet.lang.Operator.shiftRightUnsignet(carry, 32);
index++;
carry += res[index] & 0xFFFFFFFFL;
res[index] = (int)carry;
carry = java.dotnet.lang.Operator.shiftRightUnsignet(carry, 32);
}
return(res);
}
