bitcmp - Bit-wise complement - MATLAB (original) (raw)

Syntax

[cmp](#bth5q%5Fz-1-cmp) = bitcmp([A](#bth5q%5Fz-1-A)) returns the bit-wise complement of A.

[cmp](#bth5q%5Fz-1-cmp) = bitcmp([A](#bth5q%5Fz-1-A),[assumedtype](#bth5q%5Fz-1-assumedtype)) assumes that A is of assumedtype.

A = int8(-11); cmp = bitcmp(A)

You can see the complement operation when the numbers are shown in binary.

original = bitget(A,8:-1:1)

original = 1×8 int8 row vector

1 1 1 1 0 1 0 1

complement = bitget(bitcmp(A),8:-1:1)

complement = 1×8 int8 row vector

0 0 0 0 1 0 1 0

maxint = intmax('uint8') - 64

The complement of an unsigned integer is equal to itself subtracted from the maximum integer of its data type.

Input value, specified as a signed integer array, unsigned integer array, or double array.

If A is a double array, and assumedtype is not specified, then MATLAB® treats A as an unsigned 64-bit integer.
If assumedtype is specified, then all elements in A must have integer values within the range of assumedtype.

Data Types: double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64

Assumed data type of A, specified as 'uint64', 'uint32', 'uint16', 'uint8', 'int64', 'int32', 'int16', or 'int8'.

If A is a double array, then assumedtype can specify any valid integer type, but defaults to 'uint64'.
If A is an integer type array, then assumedtype must specify that same integer type.

Data Types: char | string

Bit-wise complement, returned as a signed integer array, unsigned integer array, or double array. cmp is the same size and type as A.

The bitcmp function supports GPU array input with these usage notes and limitations:

For more information, see Run MATLAB Functions on a GPU (Parallel Computing Toolbox).

Introduced before R2006a