Mega Code Archive
Covert string of [zeros and ones] to binary
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Question:
How can I convert a string of zeros and ones to the integer it
represents?
Answer:
The following example shows how to convert a "BinaryString"
to a long integer by using the shl (shift bits left) macro.
Example:
function BinStringToLongInt(BinString : string) : longint;
var
i : integer;
Num : longint;
begin
Num := 0;
for i := 1 to length(BinString) do
if BinString[i] = '1' then
Num := (Num shl 1) + 1 else
Num := (Num shl 1);
Result := Num;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
Memo1.Lines.Add(IntToStr(BinStringToLongInt('11111111')));
end;
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