Framework (A-Z)

Reference for Wiring version 1.0 Build 0100+ If you have a previous version, use the reference included with your software. If see any errors or have any comments, let us know.

Name

### & (bitwise AND)

Examples
```unsigned int a = 60;	// 60 = 0011 1100
unsigned int b = 13;	// 13 = 0000 1101
unsigned int c = 0;

c = a & b;              // 12 = 0000 1100
```
Description Compares two expressions bit by bit and returns 1 for a position bit if both compared postitions are 1. Returns 0 for that position bit if one or both compared positions are 0. The following list shows all possible combinations:

1 & 0 // Evaluates 0 because the second is 0
0 & 1 // Evaluates 0 because the first is 0
1 & 1 // Evaluates 1 because both are 1
0 & 0 // Evaluates 0 because both are 0
Syntax
```expression1 & expression2
```
Parameters
expression1 any valid expression any valid expression
Usage Application
Related &= (bitwise AND and assign)
| (bitwise OR)
|= (bitwise OR and assign)
^ (bitwise XOR)
˜ (bitwise ones complement)
<< (bitwise bit shift left)
>> (bitwise bit shift right)
Updated on July 07, 2011 11:07:52pm PDT