Re: [Gretl-devel] strange bug (due to bundles?)

On Sat, 11 May 2013, Allin Cottrell wrote: > On Fri, 10 May 2013, Sven Schreiber wrote: > >> I think I found a bug in gretl that is quite subtle. The attached script >> demonstrates the bug -- or actually in its current form it demonstrates how >> to work around the bug. [...] > > Thanks, Sven. Actually, not so terribly subtle. What's broken is the idiom > > bundle.member -= decrement > bundle.member += increment > > and the moment I saw that I thought "Uh oh, that's not going to work, is it?" > If you replace it with > > bundle.member = bundle.member - decrement > bundle.member = bundle.member + decrement >