DZone Snippets is a public source code repository. Easily build up your personal collection of code snippets, categorize them with tags / keywords, and share them with the world

Snippets Manager

Snippets has posted 5883 posts at DZone. View Full User Profile

Simple Bit Operations //Pascal Functions

06.15.2006

| 13913 views |

        Get, Clear, Set and Enable bit operations for pascal.

function GetBit(const Value: DWord; const Bit: Byte): Boolean;
begin
  Result := (Value and (1 shl Bit)) <> 0;
end;

function ClearBit(const Value: DWord; const Bit: Byte): DWord;
begin
	Result := Value and not (1 shl Bit);
end;

function SetBit(const Value: DWord; const Bit: Byte): DWord;
begin
	Result := Value or (1 shl Bit);
end;

function EnableBit(const Value: DWord; const Bit: Byte; const TurnOn: Boolean): DWord;
begin
	Result := (Value or (1 shl Bit)) xor (Integer(not TurnOn) shl Bit);
end;

Tags: