Article: Finding memory bugs in D code with AddressSanitizer
Johan Engelen
j at j.nl
Mon Dec 25 23:17:42 UTC 2017
On Monday, 25 December 2017 at 20:31:18 UTC, Walter Bright wrote:
>
> Thanks for the great article! Some suggestions:
Thanks for your comments, I've incorporated them (to my liking).
> 1. The gray-on-white text is not very legible.
Looks great here, I like it, sorry. (made it completely black
now, can't see the difference here though)
Snips:
> This comes across as unduly negative.
> This is a contrived example, and implies that normal D code is
> written like C++ code.
> It would be nice to add a paragraph mentioning things about D
> that make it a more memory safe language.
> This code should be rejected by the compiler if using -dip1000.
> It is not, so I filed a bug report
> I'd rather use examples that didn't rely on compiler/library
> bugs.
You're right, the examples are (of course) contrived. However, I
didn't want to write a marketing article, and I also want to show
examples found in the wild. I think one of the use cases of ASan
is exactly that it can help discover bugs whereever they are,
even in the compiler / standard library.
I've added bits and pieces to indicate some facilities of D to
mitigate these kinds of bugs, but the reality is that a lot of D
code is not idiomatic and does not use the safety features (for
diverse reasons).
The article is not meant as a marketing piece (only for ASan),
but also shouldn't be overly critical of D. Hope that the
balance is a bit better now with the modifications.
-Johan
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