May 2004 - C2hs - Haskell.org

problem with sys/sysmacros.h
by Jens Petersen 24 Jul '04

24 Jul '04

Hi, I have a problem when processing "vte/vte.h" (from vte-0.11.10) with c2hs-0.12.0 and glibc-2.3.3: LANG=C c2hs --cppopts="-I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0 -I/usr/include/pango-1.0 -I/usr/X11R6/include -I/usr/include/freetype2 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include" vte.h Vte.chs c2hs: Generic fatal error. /usr/include/sys/sysmacros.h:43: (column 1) [FATAL] >>> Syntax error! The symbol `{' does not fit here. It seems sys/sysmacros.h changed from glibc-2.3.2. Here is the context: # if defined __GNUC__ && __GNUC__ >= 2 __extension__ extern __inline unsigned int gnu_dev_major (unsigned long long int __dev) __THROW { return ((__dev >> 8) & 0xfff) | ((unsigned int) (__dev >> 32) & ~0xfff); } Jens ps glibc-2.3.3 will be in Fedora Core 2, which is being released on Tuesday. pps I just uploaded c2hs-0.12.0 rpms built with glibc-2.3.3 to <http://haskell.org/~petersen/rpms/c2hs/>. I applied the following patch to build it with ghc-6.2.1: --- c2hs-0.12.0/c2hs/c/CAttrs.hs~ 2004-05-16 09:46:07.000000000 +0900 +++ c2hs-0.12.0/c2hs/c/CAttrs.hs 2004-05-16 09:46:07.000000000 +0900 @@ -144,7 +144,7 @@ -- leaveObjRangeC :: AttrC -> AttrC leaveObjRangeC ac = ac { - defObjsAC = fst . leaveRange . defObjsAC $ ac, + defObjsAC = fst . leaveRange . defObjsAC $ ac } -- add another definitions to the object name space (EXPORTED)

3 2

[C2hs] Have a nice day! //liable to all the curses and maledictions of the law; so that
by Warmest J. Wine 17 May '04

17 May '04

Get easy money! http://members.lycos.co.uk/lancer131/1/ --- advantage over us; many others there are, no doubt, which

1 0

Profiling c2hs
by Duncan Coutts 15 May '04

15 May '04

All, I was writing a demo app to add to gtk2hs's small collection; it's a viewer for ghc's time profile log files, and I needed a large profile file to test it on so I thought I'd try profiling c2hs. Here's what I found: Looking at allocations (which corresponds quite closely with time): Note that these are % of the total cost, not % of their parent cost 11.7% is taken by the C & chs lexers which is not unreasonable. 77.4% is taken by the CParser Within the CParser: 72.0% is taken by parseCExtDeclList, within which 65.5% is taken by morphTypeNames (and 58.2% of the runtime) 31.4% alloc & 26.5% time was taken just by calls to Prelude.elem within morphTypeNames. In this particular run of c2hs, in which it was processing some large gtk+ headers, it called morphTypeNames over 55 million times. I narrowed this down a bit more and found that it is the call to morphTypeNames from parseCExtDeclList that takes the time, the call from parseCHeader is insignificant. Furthermore, it is the recursive calls to morphTypeNames that is expensive; parseCExtDeclList only called morphTypeNames about 1000 times (compared to 55 million recursive calls). So what's going and and what can we do? If I understand the code correctly, the reason we are doing this morphTypeNames is because we can't distinguish typedef'ed identifiers in the parser, we need to remember which identifiers were typedefs and then treat them differently in the parser later if they were. At the moment this is done by after parsing each declaration (which might contain typedefs) modifying the remaining stream of tokens changing all identifiers that have been discovered to be typedefs from ordinary identifier tokens to typedef-identifier tokens. This is expensive. Perhaps it would be possible to add this set of typedef identifiers to the parser state monad and thread it through to the parsers for cid and typedefName which could consult this parser state and match conditionally on the identifier token being in the typedef-identifier set or not. (cidOrTN would not need to to a lookup) This would avoid traversing the token stream after parsing each declaration. Sound reasonable? Duncan

3 5

I NEED YOUR ASSISTANCE
by telma savimbi 09 May '04

09 May '04

FIRST PROPERTIES INVESTMENT LTD (A SUBSIDIARY OF SAVIMBI INVESTMENTS LTD) ATTENTI: DIRECTOR/PRESIDENT May I use this opportunity to introduce my self as DR.(MRS). TELMA SAVIMBI I am the wife to the late MR. GREAT JONAS SAVIMBI, the leader of the Angolan revolutionary group known as the (UNITA) who died while on active duty in an effort to liberate our people. I am contacting you with the believe that we will develop a cordial business relationship which will be beneficial to both parties. I am currently in possession of (Fourty Five Million United State Dollars) which I intended to use for investment purposes specifically in your country. The money came about as a result of my late husband's inability to proceed with the purchase of military hardware, which he contracted with South African Arms Company. Since the start of our civil war the source of funds in prosecuting the war has been from diamond, which is under our control. My son is the secretary of state mining under The diamond were always exported to South Africa and art of the proceeds usually used buying military hardware's, I traveled immediately to my late husband's residence in South Africa and discovered the sum of ($45 Million Dollars) cash hidden under his underground safe. Due to my status as a refugee, I cannot invest these funds here in South Africa, I therefore seek your assistance in transferring this funds out of South Africa, all necessary arrangement has been made by me and I assure you that there is no risk attached to this and we will work out modalities for the success of this transaction. I promise to give you 10% of the total funds for your assistance and my family will use the remaining 90% for investment in your country. I hope that this proposal will interest you. my son JAMES JONAS SAVIMBI is staying in Spain as a refugee Please I will like you to keep this transaction at utmost secrecy whatever your decision will be while I await your response via email telmasavimbi(a)uymail.com (this is savimbi web site) http://www.empereur.com/angola.html Regards, DR.(MRS).TELMA SAVIMBI

1 0

Premier Asian Clothing e-Shopping!
by Fashion Orient Inc. 04 May '04

04 May '04

This email is frome Priemer Asian Clothing e-Shop Fashion Orient! http://www.fashionorient.com Free gift for every order over $80 !!! We are specialized in Chinese clothing, Chinese Dress, Oriental Clothing, and more... FashionOrient Inc. www.fashionorient.com

1 0