Hello,
I have the following function from a C# project that I'm trying to convert to VB code :
I tried to write this in my VB project :
No values are corresponding between C# and my VB attempt.
I don't even know what variable "a" and "b" are, is it Byte? Integer?
I also don't understand what happen on" stringBuilder.Append(a Or b)". Is stringBuilder choose randomly to append between a or b?
I'm running short on time and it seems I have a lot of work to learn what happen here.
I would be grateful if someone could explain to me what is going on in this function!
Thanks
I have the following function from a C# project that I'm trying to convert to VB code :
Code:
private const string Hex = "0123456789abcdef";
public static string DecodeHex(string input)
{
var stringBuilder = new StringBuilder();
var i = 0;
do
{
var a = ((Hex.IndexOf(input[i++]) << 4) & 0xf0);
var b = 0;
if (i < input.Length)
b = (Hex.IndexOf(input[i++]) & 0xf);
stringBuilder.Append(new[] { (char)(a | b) });
} while (i < input.Length);
return stringBuilder.ToString();
}Code:
Private Const Hex As String = "0123456789abcdef"
Public Function DecodeHex(ByVal input As String) As String
Dim stringBuilder = New StringBuilder()
Dim i = 0
Do
Dim a = (Hex.IndexOf(input(i)) << 4 & CByte(&HF0))
Dim b = 0
i += 1
If i < input.Length Then
b = (Hex.IndexOf(input(i)) & CByte(&HF))
i += 1
End If
'stringBuilder.Append({CChar((a Or b))})
stringBuilder.Append({(a Or b)})
Loop While i < input.Length
Return stringBuilder.ToString()
End FunctionI don't even know what variable "a" and "b" are, is it Byte? Integer?
I also don't understand what happen on" stringBuilder.Append(a Or b)". Is stringBuilder choose randomly to append between a or b?
I'm running short on time and it seems I have a lot of work to learn what happen here.
I would be grateful if someone could explain to me what is going on in this function!
Thanks
