On Friday, 18 January 2019 at 17:26:35 UTC, Mek101 wrote:
Then why isn't int + int = long? If i did the example above, they wouldn't fit in a int for sure, yet the result is of the same type. Why should byte be any different?
Because C didn't define it that way. And C didn't define it that way because of convenience and efficiency on common hardware biased toward int (and nowadays with 64 bit, we kept int at 32 for compatibility basically, the inertia set in).
We have proposed to change it before, but the main policy D has right now is "if it looks like C, it works like C or doesn't compile at all", so programmer habits and such don't silently bite them.
