https://github.com/D-Programming-Language/dmd/pull/673
"Tommi" <tommitiss...@hotmail.com> wrote in message news:ozvdphftlwxkeumrn...@forum.dlang.org... > On Monday, 15 October 2012 at 08:25:18 UTC, Tommi wrote: >> in reality, it's very easy to write a bug that makes an enum variable >> have an invalid value. E.g: > > Writing that bug wasn't as easy as I thought though. Here's the code with > a bug: > > enum MyEnum { first, second, third } > > auto me = MyEnum.min; > > while (me <= MyEnum.max) > { > // do something > ++me; > } > > final switch (me) // this should throw > { > case MyEnum.first: break; > case MyEnum.second: break; > case MyEnum.third: break; > } > > Instead, currently this code runs just fine, none of the switch cases are > taken. So, this bug might manifest itself very far from where it actually > should have been throwing: on that final switch expression. Thus hunting > this bug down could be tedious.
