Learn more about MATLAB

bitcmp - Bitwise complement

Syntax

C = bitcmp(A) C = bitcmp(A, n)

Description

C = bitcmp(A) returns the bitwise complement of A, where A is an unsigned integer or an array of unsigned integers.

C = bitcmp(A, n) returns the bitwise complement of A as an n-bit unsigned integer C. Input A may not have any bits set higher than n (that is, A may not have a value greater than 2^n-1). The value of n can be no greater than the number of bits in the unsigned integer class of A. For example, if the class of A is uint32, then n must be a positive integer less than 32.

Examples

Example 1

With eight-bit arithmetic, the one's complement of 01100011 (decimal 99) is 10011100 (decimal 156):

C = bitcmp(uint8(99))
C =
   156

Example 2

The complement of hexadecimal A5 (decimal 165) is 5A:

x = hex2dec('A5')
x =
   165

dec2hex(bitcmp(x, 8))
ans =
5A

Next, find the complement of hexadecimal 000000A5:

dec2hex(bitcmp(x, 32))
ans =
FFFFFF5A