digitalmars.D - =?windows-1252?Q?Gsoc_Mentor_summit=85_and_fortran_=3B=29?=
- Fawzi Mohamed (31/31) Oct 27 2011 I came back from the Goggle Summer of Code mentor summit.
I came back from the Goggle Summer of Code mentor summit. It was nice to see many people from other open source communities, and = meet David face to face ;). We did try to leave some notes to remember what we said and for those = who could not attend, but this wasn't the strong point of this = conference, but it did improve (at least my note taking activity did)=85 Anyway if you are interested to have a glimpse on what was discussed you = can go to http://gsoc-wiki.osuosl.org/index.php/2011 David and me obviously did try to show how nice D is, but we also saw = the cool stuff other are doing, and discussed both the practical and the = more philosophical aspects of open source. For example from the unexpected interesting stuff I can tell of a = discussion that I had with Tobias Burnus that works on fortran fronted I = realized that intent(in) in fortran is very close to immutable (actually = even stronger, as it guarantees that the pointer will not escape, so the = compiler is even ok in copying stuff on entry (this also for = intent(inout), which had no real corresponding thing in D). intent(inout) x even guarantees that x=3D5; f(); assert(x=3D=3D5);. f = can obviously also have x as intent(in). Fortran does this to give the optimizer as much freedom as possible. D doesn't have all that, but with immutable and pure, it can use some of = the same optimizations. Indeed it is possible that gdc could use some of the fortran annotations = something that I promptly mailed Iain. Here the different philosophy is visible: D give safe primitives, and = behavior, and try to optimize; fortran choose fast options, define it as = the way things work, and make the programmer job to make sure he uses = things right, something that is simplified for the fact that fortran is = typically threaded only through OpenMP. ciao Fawzi=
Oct 27 2011