[gambit-list] integer->char bootstrap problem: git head goes into infinite loop

Mikael mikael.rcv at gmail.com
Thu Jan 30 18:46:16 EST 2014


Perhaps for this particular environment where the C compiler doesn't bundle
the required math functions (= only Microsoft?), a proper behavior would be
for the configure script to check for optional availability of this
external support library for the same math functions (the msun library or
similar choice) and if so link it in but for basis provide an internal
implementation that's focused on being short and toti-compatible?


2014-01-31 Bakul Shah <bakul at bitblocks.com>

> On Thu, 30 Jan 2014 17:51:26 EST Bradley Lucier <lucier at math.purdue.edu>
> wrote:
> >
> > On Jan 30, 2014, at 5:43 PM, Bakul Shah wrote:
> >
> > >
> > > On Thu, 30 Jan 2014 16:27:11 EST Marc Feeley <feeley at iro.umontreal.ca>
> wrote:
> > >>
> > >> Anyone know of a good portable implementation of those functions
> > (sinh, cosh,
> > >> tanh, asinh, acosh, atanh, expm1, log1p, scalbn)?  I'll take a poor
> > >> implementation if a good one doesn't exist...
> > >
> > > May be you can use FreeBSD's math lib (originally from Sun).
> > > https://github.com/freebsd/freebsd/tree/master/lib/msun
> >
> > Yes, this library is a good option (I don't know whether FreeBSD made
> > many changes to the original Sun library).
>
> There have been a number of changes, support for more arch,
> long double, complex number versions, performance imrovements,
> fixes, etc. etc. You can trawl through its history to see what
> was done. I don't use them enough to know of their accuracy
> and I don't know if exhaustive tests are run regularly. You
> should talk to Bruce Evans and David Schultz for details.
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