How can I convert BitAr开发者_Go百科ray
to a single int
?
private int getIntFromBitArray(BitArray bitArray)
{
if (bitArray.Length > 32)
throw new ArgumentException("Argument length shall be at most 32 bits.");
int[] array = new int[1];
bitArray.CopyTo(array, 0);
return array[0];
}
private int getIntFromBitArray(BitArray bitArray)
{
int value = 0;
for (int i = 0; i < bitArray.Count; i++)
{
if (bitArray[i])
value += Convert.ToInt16(Math.Pow(2, i));
}
return value;
}
This version:
- works for up to 64 bits
- doesn't rely on knowledge of BitArray implementation details
- doesn't needlessly allocate memory
- doesn't throw any exceptions (feel free to add a check if you expect more bits)
- should be more than reasonably performant
Implementation:
public static ulong BitArrayToU64(BitArray ba)
{
var len = Math.Min(64, ba.Count);
ulong n = 0;
for (int i = 0; i < len; i++) {
if (ba.Get(i))
n |= 1UL << i;
}
return n;
}
Reffering to this post (#43935747). A value X is short tpe whic I set two bits (6 and 10) like below: short X=1;
var result = X;
var bitsToSet = new [ ] { 5,9 };
foreach ( var bitToSet in bitsToSet )
{
result+=( short ) Math.Pow ( 2,bitToSet );
}
string binary = Convert.ToString ( result,2 );
Now I would like to read the specific all bits from Value X and put it in to an array or a bit type like bool Val1= bit1, bool Val2=bit2....
I am a newbie and I think it is pretty simple for you guyes..
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