[Issue 10093] wrong unsigned arithmetic

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=10093



--- Comment #9 from 9999 <sibaqexozequgaba at tempomail.fr> 2013-05-16 12:57:40 PDT ---
(In reply to comment #8)
> The original issue was:
> 
> auto offset = text1.length - text2.length;
> func(offset);
> 
> and offset turned out to be around 4294967291
> 
> I was thinking, setting a uint to a negative value is kind of an overflow,
> should it maybe be treated the same way like array bounds and be checked by
> druntime (with optional disabling in production release)?

Well, that's probably something the compiler can't warn about. Not statically,
that's for sure.
You can use a custom type which checks for bound overflows, and fallback to
regular int for release builds.

-- 
Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email
------- You are receiving this mail because: -------