On 7/6/18 11:19 AM, Ecstatic Coder wrote:
On Friday, 6 July 2018 at 14:52:46 UTC, 12345swordy wrote:
On Friday, 6 July 2018 at 14:11:05 UTC, Ecstatic Coder wrote:
Just one silly question.
Can the following "naive" D code trigger a garbage collection stall ?
score.Text = point_count.to!string() ~ " POINTS";
The correct answer is: I don't know, as I don't know what
"point_count" is in the first place, as it never been defined.
Actually you answer was right even if the point count was not stored as
an integer ;)
The real answer is what rikki says.
Note that what point_count is is irrelevant, the concatenation operator
is going to trigger a GC allocation.
We could go further and say "Well, you haven't defined `to` or `string`"
and then we can say we have no idea what this means at all!
For C++, the answer is : never.
Of course, the answer in C++ is that it won't compile, this is D code! ;)
And yes, you can have @nogc code in D, and it's less pleasant than
normal D code, but still WAY more pleasant that most C++ code. So will
people put up with this who want to just write games? Given the current
state of the landscape, probably not.
At some point, someone is going to make a fantastic game engine in D,
and then we will have a ballgame. Maybe it happens after D gets better
support for reference counting, maybe before. Nothing inherent in D
makes it impossible or unlikely. But people aren't going to switch "just
because", there needs to be a compelling reason that causes someone to
champion it.
-Steve
