Nhc-bugs

Download

nhc-bugs@haskell.org

October 2004

3 participants
2 discussions

nhc98 bignum div/mod gives wrong answers or segmentation faults
by Martin Guy 29 Oct '04

29 Oct '04

Hi! I'm in the first month of translating my brain from mira to hs, and seem to have come across an hnc98 bug: my app is the famous infinite-precision scientific math library - see http://freaknet.org/bignum - and while the hs version currently has no known bugs under hugs, when I compile with nhc98 it gives me pi as 3.157..... while sqrt(2) gives a couple of thousand correct decimal places and then segmentation faults. Other calculations run ok. The problem only seems to occur in code that uses the div/mod on Integers, so I'm assuming the problem is in that. I've trimmed down the sqrt2 example to a small source file which is attached and obligingly continues to work under hugs and dump core with nhc98. Unfortunately I don't have another architecture than Linux/x86 to try it on - would someone check whether it does the same on another system? I'm afraid that the wrong-answer of pi is rather hard to extract into a self-contained fragment as it uses the infinite-precision trig functions and they call in the rest of the world. The system is Slackware Linux 9.0 (GCC 3.2.2) on Intel Pentium 3 (Coppermine) with 128MB RAM. Hugs is hugs98 - November 2003 and nhc is nhc98-1.16 both compiled from source tarballs with no problems. I'm online every day or so if there are turther tests I can run to help out. Blessings Martin Guy

2 1

Trouble building nhc98 for AIX
by John Goerzen 04 Oct '04

04 Oct '04

Hello, I have nhc98 1.16 plus the gcc3.3 patch from the website and am trying to build it on AIX 5.1L. First, every test for including inttypes.h instead of stdint.h should include _AIX in the list of systems that use inttypes.h. (Look in mark.h, HsFFI.h). Now then -- I have no existing Haskell support on this machine so I'm bootstrapping from GCC 3.3.2. I am getting this problem: make[1]: Leaving directory `/home/jgoerzen/programs/nhc98-1.16/src/prelude' touch targets/powerpc-AIX-5.1.0.0/prelude-gcc touch targets/powerpc-AIX-5.1.0.0/prelude script/nhc98 -o lib/powerpc-AIX-5.1.0.0/hmake-PRAGMA script/hmake-PRAGMA.hc touch targets/powerpc-AIX-5.1.0.0/pragma-gcc make: *** No rule to make target `src/compiler98/*.hc', needed by `targets/powerpc-AIX-5.1.0.0/compiler-gcc'. Stop. jgoerzen@mfgpro:~/programs/nhc98-1.16$ make make: *** No rule to make target `src/compiler98/*.hc', needed by `targets/powerpc-AIX-5.1.0.0/compiler-gcc'. Stop. So now I am really stuck. Suggestions welcome :-) -- John Goerzen

3 10