Index
 
  Reference for Wiring 1.0 (ALPHA) 0022+. If you have a previous version, use the reference included with your software. If you see any errors or have any comments, let us know.
Name  

| (bitwise OR)

   
Examples   
unsigned int a = 60;	// 60 = 0011 1100 
unsigned int b = 13;	// 13 = 0000 1101 
unsigned int c = 0;           
 
c = a | b;              // 61 = 0011 1101

Description   Compares two expressions bit by bit and returns 1 for a position bit if one or both compared postitions are 1. Returns 0 for that position bit if both compared positions are 0. The following list shows all possible combinations:

1 | 0 // Evaluates 1 because the first is 1
0 | 1 // Evaluates 1 because the second is 1
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

   
Returns  
   
Usage   Application
   
Related   & (bitwise AND)
&= (bitwise AND and assign)
|= (bitwise OR and assign)
^ (bitwise XOR)
˜ (bitwise ones complement)
<< (bitwise bit shift left)
>> (bitwise bit shift right)