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Convert hexadecimal to binary
Hexadecimal format of a number is a reduced binary format of this number. Use HexToBin function to convert hexadecimal to binary format.
function HexToBin(HexStr: string): string;
const
BinArray: array[0..15, 0..1] of string =
(('0000', '0'), ('0001', '1'), ('0010', '2'), ('0011', '3'),
('0100', '4'), ('0101', '5'), ('0110', '6'), ('0111', '7'),
('1000', '8'), ('1001', '9'), ('1010', 'A'), ('1011', 'B'),
('1100', 'C'), ('1101', 'D'), ('1110', 'E'), ('1111', 'F'));
HexAlpha: set of char = ['0'..'9', 'A'..'F'];
var
i, j: Integer;
begin
Result:='';
HexStr:=AnsiUpperCase(HexStr);
for i:=1 to Length(HexStr) do
if HexStr[i] in HexAlpha then
begin
for j:=1 to 16 do
if HexStr[i]=BinArray[j-1, 1] then
Result:=Result+BinArray[j-1, 0];
end
else
begin
Result:='';
ShowMessage('This is not hexadecimal number');
Break;
end;
if Result<>'' then
while (Result[1]='0')and(Length(Result)>1) do
Delete(result, 1, 1);
end;
- Related topics
-
Convert binary to hexadecimal
Convert binary to octal
Convert octal to binary
Convert octal to decimal
Convert decimals to binary
Convert decimals to hexadecimals
Convert hexadecimals to decimals
Convert binary to decimals
- For more
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