Difference between revisions of "Or"
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* [[Shl]] | * [[Shl]] | ||
* [[Const]] | * [[Const]] | ||
| + | * [[Function]] | ||
* [[Integer]] | * [[Integer]] | ||
Revision as of 22:02, 25 October 2007
Or produces a value of true if some value is true and false if both of its operands are false.
Bitwise operation
Bitwise or sets the bit to 1 if one corresponding bits in its operands are 1, and to 0 if they all are 0.
Set a bit
<delphi> function SetBit(const AValue, ABitNumber:integer):integer; begin
result := AValue or (1 shl ABitNumber);
end; </delphi> If you call SetBit(%1000,1) then get %1010 (%1000 = 8 and %1010 = 10). If you call SetBit(10,2) then get 14 (14 = %1110). If you call SetBit(10,1) then get 10.
