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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
expression2 | 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