How can I do this with generics please

[Mike Davies]

Hi,

I want to do this but can;t figure it out! :-( Can I even do it?

public static T Get4Bytes<T>( byte [] ptr , ref int Index)
{
uint ui = 0;

try
{
ui = ( (uint) ptr[ Index++ ] ) << 24;
ui += ( (uint) ptr[ Index++ ] ) << 16;
ui += ( (uint) ptr[ Index++ ] ) << 8;
ui += (uint) ptr[ Index++ ];

}
catch (Exception e)
{
Debug.WriteLine(e);
}

return (T)ui; <--------Cannot convert type 'uint' to 'T'

}

Thanks,

Mike

[Lebesgue]

Why do you want the method to be generic?
Do you want to return an integer containing four bytes from the ptr argument
starting with position Index?
Do it. Without generics.

Just a quick note: BitConverter class might help you a little bit.

"Mike Davies" <mike@(cutmeout)scrappy.freeserve.co.uk> wrote in message
news:64********************************@4ax.com...

Hi,

I want to do this but can;t figure it out! :-( Can I even do it?

public static T Get4Bytes<T>( byte [] ptr , ref int Index)
{
uint ui = 0;

try
{
ui = ( (uint) ptr[ Index++ ] ) << 24;
ui += ( (uint) ptr[ Index++ ] ) << 16;
ui += ( (uint) ptr[ Index++ ] ) << 8;
ui += (uint) ptr[ Index++ ];

}
catch (Exception e)
{
Debug.WriteLine(e);
}

return (T)ui; <--------Cannot convert type 'uint' to 'T'

}

Thanks,

Mike

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

What is what you want?

I see no use here for generic. Basically you are returning the numeric value
of a type represented by 4 bytes.

How many different types can be?

Not only that, but uint should be castable to T.
--
--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Mike Davies" <mike@(cutmeout)scrappy.freeserve.co.uk> wrote in message
news:64********************************@4ax.com...

Hi,

I want to do this but can;t figure it out! :-( Can I even do it?

public static T Get4Bytes<T>( byte [] ptr , ref int Index)
{
uint ui = 0;

try
{
ui = ( (uint) ptr[ Index++ ] ) << 24;
ui += ( (uint) ptr[ Index++ ] ) << 16;
ui += ( (uint) ptr[ Index++ ] ) << 8;
ui += (uint) ptr[ Index++ ];

}
catch (Exception e)
{
Debug.WriteLine(e);
}

return (T)ui; <--------Cannot convert type 'uint' to 'T'

}

Thanks,

Mike