Size_t on x86 is uint,on x64 is ulong,it's a good thing?

[FrankLIKE via Digitalmars-d]

> It's the same in C and it reflects what the hardware is doing 
> underneath with regard to memory addresses. That's the point of 
> size_t. If it didn't change size then we'd all just use ulong 
> or uint for all our array lengths etc.

In c#,add the new attribute 'longlength' on the new version,keep 
the ‘length' in the attributes,and the type 'int' or 'uint' that 
is ok for most of condition ,maybe  a longlength is ok for a 
little condition.

Thank you.

Frank