core.checkedint added to druntime

[Walter Bright via Digitalmars-d-announce]

On 6/18/2014 2:43 AM, bearophile wrote:
> Walter Bright:
>
>> https://github.com/D-Programming-Language/druntime/pull/839
>
> Why aren't functions with ubyte/byte/short/ushort arguments included?

Because there is no ubyte/byte/short/ushort math in C, C++ or D. There is only 
int/long math.