If maxima calls an error here instead of signal, it should be a cerror
so one can get the #<inf> if desired. GCL can do the following, but I
have not been able to discover a way for C code to return from a traped
FPE:
>(si::break-on-floating-point-exceptions :floating-point-overflow t)
(:FLOATING-POINT-OVERFLOW)
>(exp 1000000000000.0)
Error:
Fast links are on: do (si::use-fast-links nil) for debugging
Signalled by EXP.
Condition in EXP [or a callee]: INTERNAL-SIMPLE-FLOATING-POINT-OVERFLOW:
Arithmetic error when performing (:INSN "fnop ;" :OP ...) on NIL:
Broken at EXP. Type :H for Help.
1 Return to top level.
>>
Take care,
James Cloos <cl...@jhcloos.com> writes:
> i meant to add that ccl (also on linux amd64) returns 1E++0 .
>
> unless one calls (decode-float), after that it start sigalling a
> fp exception. if instead one calls (integer-decode-float) the
> error makes it clear that 1E++0 is indeed +∞.
>
> -JimC
--
Camm Maguire c...@maguirefamily.org
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"The earth is but one country, and mankind its citizens." -- Baha'u'llah
