On Tuesday, 21 October 2025 at 23:47:37 UTC, Andy Valencia wrote:
On Tuesday, 21 October 2025 at 20:09:01 UTC, Steven
Schveighoffer wrote:
PR now [added](https://github.com/dlang/dmd/pull/22009). Thank
you for posting this, as this was my error when adding the new
GC API in the last version!
Congrats, Brother Bill, I do believe that's the first
out-and-out bug you've discoverd!
Andy
I'm old school, started with Machine Language on punch cards with
IBM 1620 computer in 1969.
My first out-and-out bug discovery was on a Burroughs 5000 (if I
remember right) and when writing to Channel 5, you were supposed
to use two digits, as in 05. I only typed in a single digit and
was the first to do so.
This resulted in a three foot stack of printouts with a message
to ship this to Burroughs Corporation. Several weeks later, they
came back with the explanation, and they modified the compiler so
than one or two digits would be acceptable.
I'm working on building a very thorough Udemy course on D
language based on Brother Ali's Programming in D book. So I need
to thoroughly test each skill in the book so that students can
learn it without needing to read the D Specification. Thus I
find some errors inadvertently.
Generally, when a newbie finds an error, that is on the newbie's
side.
This was a rare exception.
IMHO, slices should not escape to the heap, as the whole purpose
of using slices is to have reference (shared) semantics.
Escaping to the heap breaks sharing, which will generally break
algorithms. Thus breaking sharing should result in an exception.
But its probably a bit late to change the spec.
