donn: > On Mon, 13 Nov 2006, Donald Bruce Stewart wrote: > > > And for custom data (not just C strings), if the withCString* functions > > don't quite fit, you can always pack the foreign Ptr into a ByteString > > by stepping inside the ByteString constructor: > > > > http://www.haskell.org/haskellwiki/Wc#Going_via_C > > That's actually what I tried first, but in this particular situation > (ghc-6.4.1 / fps-0.7), PS apparently isn't exported?
Right, you'll want to grab the soon-to-be-tagged fps 0.8, which matches that provided with ghc 6.6. It's in the darcs repo. > The CStringLen approach works, except that the allocated data doesn't > get garbage-collected. Just for the sake of experiment I tried a regular > CString with packMallocCString, and that didn't leak nearly as much memory - > but still some, in a simple loop where "pack" doesn't leak anything. -- Don _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
