public static int getIntegerFromBitArray(BitArray bitArray)
{
var result = new int[1];
bitArray.CopyTo(result, 0);
return result[0];
}
// Input A) 01110
// Output A) 14
// Input B) 0011
// Output B) 12 <=== ????? WHY!!! :)
Can some one please explain me why my second return value is 12 instead of 3?? Please ... Thank you.
Basically it's considering the bits in the opposite order to the way you were expecting - you haven't shown how you're mapping your input binary to a BitArray, but the result is treating it as 1100 rather than 0011.
The documentation isn't clear, admittedly, but it does work the way I'd expect it to: bitArray[0] represents the least significant value, just as it usually is when discussing binary (so bit 0 is 0/1, bit 1 is 0/2, bit 2 is 0/4, bit 3 is 0/8 etc). For example:
using System;
using System.Collections;
class Program
{
static void Main(string[] args)
{
BitArray bits = new BitArray(8);
bits[0] = false;
bits[1] = true;
int[] array = new int[1];
bits.CopyTo(array, 0);
Console.WriteLine(array[0]); // Prints 2
}
}
You need rotate bit's to right direction to get right results. 1100 is 12
