On Friday, 18 January 2019 at 17:15:09 UTC, Steven Schveighoffer
wrote:
What is 127 + 127? Answer: 254. Which if converted to a byte is
-127. Not what you might expect if you are doing addition.
Quite similar to int.max + int.max
In fact, D promotes all integral types smaller than int to int
to do arithmetic. And if the result might not fit into what you
are assigning it to, it requires a cast or mask.
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?
