convert from BitArray to 16-bit unsigned integer in c#

Question

BitArray bits=new BitArray(16); // size 16-bit

有 bitArray，我想在 c# 中将此数组中的 16 位转换为无符号整数，我不能使用 copyto 进行转换，还有其他方法可以从16-bit转换为UInt16吗？

Answer 1

You can do it like this:

uint16 res = 0;
for (int i = 0 ; i != 16 ; i++) {
    if (bits[i]) {
        res |= (uint16)(1 << i);
    }
}

This algorithm checks the 16 least significant bits one by one, and uses the bitwise OR operation to set the corresponding bit of the result.

Answer 2

You can loop through it and compose the value itself.

var bits = new BitArray(16);
bits[1] = true;
var value = 0;

for (int i = 0; i < bits.Length; i++)
{
    if (lBits[i])
    {
        value |= (1 << i);
    }
}

Answer 3

This should do the work

    private uint BitArrayToUnSignedInt(BitArray bitArray)
    {
        ushort res = 0;
        for(int i= bitArray.Length-1; i != 0;i--)
        {
            if (bitArray[i])
            {
                res = (ushort)(res + (ushort) Math.Pow(2, bitArray.Length- i -1));
            }
        }
        return res;
    }

Answer 4

You can check this another anwser already in stackoverflow of that question:

Convert bit array to uint or similar packed value