[FIXED] Python: How to convert array of 4 digits to a larger number, bitwise?

Issue

Let's say I have the

array = [1,2,3,4]

What I want is NOT to convert to the number 1234; but to take the bits of 1, 2, 3 and 4, concatenate them and convert back to a number.

In other words, I would have to perhaps convert each number/digit to binary, concatenate them and then convert back to a number.

Therefore, 1,2,3,4 would be 00000001, 00000010, 00000011, 00000100 respectively. Concatenating them would lead to 00000001000000100000001100000100 which converted to an unsigned int would be 16909060

Keep in mind that the digits from the array come from ord(characters), so they should be 8bits in length, therefore concatenated should lead to a 32bit number

How would I do that?

Solution

In this simple case perhaps this suffices:

result = array[0] << 24 | array[1] << 16 | array[2] << 8 | array[3]

For example:

array = [1, 2, 3, 4]
result = array[0] << 24 | array[1] << 16 | array[2] << 8 | array[3]
print result

Prints this:

16909060

Answered By - Elektito