On Wednesday, 17 September 2014 at 13:20:15 UTC, Shachar wrote:
On Wednesday, 17 September 2014 at 13:03:05 UTC,
flamencofantasy wrote:
the result of ubyte + ubyte is int I believe.
Try;
void func( int c )
{
ubyte a;
a = cast(ubyte)(cast(ubyte)c + cast(ubyte)c);
}
From http://dlang.org/type, under Usual Arithmetic Conversions:
4. Else the integer promotions are done on each operand,
followed by:
1. If both are the same type, no more conversions are done.
So, as far as I can see, the specs disagree with you.
You missed that "integer promotions" are done first.
<http://dlang.org/type.html#Integer%20Promotions>:
Integer Promotions are conversions of the following types:
[...]
from to
[...]
ubyte int
[...]
So, integer promotions turn ubyte + ubyte into int + int.
