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⤷ Convert octal to binary
Use OctToBin function to convert number in octal format to binary format.
function OctToBin(OctStr: string): string;
function DecToBinStr(N: Integer): string;
var
S: string;
i: Integer;
begin
if N<>0 then
for i:=1 to SizeOf(N)*8 do
begin
if N<0 then
S:=S+'1'
else
S:=S+'0';
N:=N shl 1;
end
else
S:='0';
Delete(S, 1, Pos('1', S)-1);
case Length(S) mod 3 of
1: S:='00'+S;
2: S:='0'+S;
end;
Result:=S;
end;
var
i: Integer;
begin
Result:='';
for i:=1 to Length(OctStr) do
begin
if not (OctStr[i] in ['0','1','2','3','4','5','6','7']) then
begin
ShowMessage('This is not octal number');
Result:='';
Break;
end
else
Result:=Result+DecToBinStr(StrToInt(OctStr[i]));
while (Result[1]='0')and(Length(Result)>1) do
Delete(Result, 1, 1);
end;
end;
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