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I have a hexadecimal string value. I want to convert it to an integer.
function HexStrToInt(const str: string): Integer;
begin
Result := ??;
end;
such that HexStrToInt('22'), for example, returns 34.
227
To convert a hexadecimal string to a numberUse the ToInt32(String, Int32) method to convert the number expressed in base-16 to an integer. The first argument of the ToInt32(String, Int32) method is the string to convert. The second argument describes what base the number is expressed in; hexadecimal is base 16.
Use int() to Convert Hex to Int in Python If you put 0 as the argument for the base value, it will derive the number format from the value's prefix. If there isn't any prefix, it will automatically recognize it as a decimal, 0b for binary, 0o for octal, and 0x for hexadecimal.
Perhaps the simplest is to do this:
function HexStrToInt(const str: string): Integer;
begin
Result := StrToInt('$' + str);
end;
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