bitand - Bit-wise AND - MATLAB (original) (raw)

Syntax

Description

[C](#bth4bon-C) = bitand([A,B](#bth4bon-AB)) returns the bit-wise AND of A and B.

example

[C](#bth4bon-C) = bitand([A,B](#bth4bon-AB),[assumedtype](#bth4bon-assumedtype)) assumes that A and B are of assumedtype.

example

[objout](#bth4bon-objout) = bitand([netobj1](#bth4bon-netobj1),[netobj2](#bth4bon-netobj1)) returns the bit-wise AND of the .NET enumeration objects netobj1 and netobj2.

Examples

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Truth Table

Create a truth table for the logical AND operation.

A = uint8([0 1; 0 1]); B = uint8([0 0; 1 1]); TTable = bitand(A, B)

TTable = 2x2 uint8 matrix

0 0 0 1

bitand returns 1 only if both bit-wise inputs are 1.

Negative Values

MATLAB® encodes negative integers using two's complement. For example, to find the two's complement representation of -5, you take the bit pattern of the positive version of the number (00000101), swap each bit (11111010), and then add 1 to the result (11111011).

Therefore, the bit-wise AND of -5 (11111011) and 6 (00000110) is 2 (00000010).

a = -5; bitget(a,8:-1:1,'int8')

ans = 1×8

 1     1     1     1     1     0     1     1

b = 6; bitget(b,8:-1:1,'int8')

ans = 1×8

 0     0     0     0     0     1     1     0

ans = 1×8

 0     0     0     0     0     0     1     0

Input Arguments

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A,B — Input values

scalars | vectors | matrices | multidimensional arrays

Input values, specified as scalars, vectors, matrices, or multidimensional arrays. Inputs A and B must either be the same size or have sizes that are compatible (for example, A is an M-by-N matrix and B is a scalar or 1-by-N row vector). For more information, see Compatible Array Sizes for Basic Operations. A and B also must be the same data type unless one is a scalar double.

• If A and B are double arrays, and assumedtype is not specified, then MATLAB® treats A and B as unsigned 64-bit integers.
• If assumedtype is specified, then all elements in A and B must have integer values within the range of assumedtype.

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

assumedtype — Assumed data type of integ1 and integ2

'uint64' | 'uint32' | 'uint16' | 'uint8' | 'int64' | 'int32' | 'int16' | 'int8'

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

• If A and B are double arrays, then assumedtype can specify any valid integer type, but defaults to 'uint64'.
• If A and B are integer type arrays, then assumedtype must specify that same integer type.

Data Types: char | string

netobj1, netobj2 — Input values

.NET enumeration objects

Input values, specified as .NET enumeration objects. You must be running a version of Windows® to use .NET enumeration objects as input arguments.

bitand is an instance method for MATLAB enumeration objects created from a .NET enumeration.

Output Arguments

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C — Bit-wise AND result

array

Bit-wise AND result, returned as an array. C is the same data type as A and B.

• If either A or B is a scalar double, and the other is an integer type, then C is the integer type.

objout — Bit-wise AND result

.NET enumeration object

Bit-wise AND result, returned as a .NET enumeration objects.

Extended Capabilities

C/C++ Code Generation

Generate C and C++ code using MATLAB® Coder™.

GPU Code Generation

Generate CUDA® code for NVIDIA® GPUs using GPU Coder™.

HDL Code Generation

Generate VHDL, Verilog and SystemVerilog code for FPGA and ASIC designs using HDL Coder™.

Thread-Based Environment

Run code in the background using MATLAB® backgroundPool or accelerate code with Parallel Computing Toolbox™ ThreadPool.

This function fully supports thread-based environments. For more information, see Run MATLAB Functions in Thread-Based Environment.

GPU Arrays

Accelerate code by running on a graphics processing unit (GPU) using Parallel Computing Toolbox™.

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

• Both inputs can be unsigned integer arrays, or one input can be an unsigned integer array and the other input can be a scalar double.
• 64-bit integers are not supported.
• The assumedtype argument is not supported.

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

Distributed Arrays

Partition large arrays across the combined memory of your cluster using Parallel Computing Toolbox™.

Usage notes and limitations:

• The assumedtype argument is not supported.

For more information, see Run MATLAB Functions with Distributed Arrays (Parallel Computing Toolbox).

Version History

Introduced before R2006a